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2018-02-20 08:35:45,910 [YDAWBH120][Thread:15][FATAL] DotNetNuke.Framework.PageBase - An error has occurred while loading page.
System.Web.HttpException (0x80004005): Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.

See http://go.microsoft.com/fwlink/?LinkID=314055 for more information. ---> System.Web.UI.ViewStateException: Invalid viewstate. 
	Client IP: 173.205.33.16
	Port: 32263
	Referer: 
	Path: /Default.aspx
	User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
	ViewState: Iz o64g/TqE6LdqRE2q5PoIv03WRaaht0bH0EsBa1paL6xz8D9BkeM1mMfFVyZgtUxOgPIiioHpLxuE wn2 DIMITs7cTK/Fq2CfEYa3/sx563cetyVWDy5PhLlRJtjXOcxfmMKnCVn/9 s0k6Jx4HKZf5uZqce3c0kc0PQYvmepgbS241uzXhK85Fdv7wRflstJt2h4E64oE8QW/zM9 6kuUtEy U8BuqV TP3CJ1nvFvHluu1MheTFNFZLqg4CmY/MNAl8UbR9j/2BjDnDufpFR2eXQY1cmAHajWYkhbufYBJont4EQ7csncvXoVpQnkSMr33iYxs9IITWkyS5JXHfGWNezWzjf8fcZWqakU1sUasBMqZL8y7lhqovK8Le7Du31w==
   at System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError)
   at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString, Purpose purpose)
   at System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter2.Deserialize(String serializedState, Purpose purpose)
   at System.Web.UI.Util.DeserializeWithAssert(IStateFormatter2 formatter, String serializedState, Purpose purpose)
   at System.Web.UI.HiddenFieldPageStatePersister.Load()
   at System.Web.UI.Page.LoadPageStateFromPersistenceMedium()
   at System.Web.UI.Page.LoadAllState()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
2018-02-20 08:35:45,972 [YDAWBH120][Thread:15][ERROR] DotNetNuke.Services.Exceptions.Exceptions - ~/Default.aspx?tabid=588&error=An unexpected error has occurred&content=0
System.Web.HttpException (0x80004005): Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.

See http://go.microsoft.com/fwlink/?LinkID=314055 for more information. ---> System.Web.UI.ViewStateException: Invalid viewstate. 
	Client IP: 173.205.33.16
	Port: 32263
	Referer: 
	Path: /Default.aspx
	User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
	ViewState: Iz o64g/TqE6LdqRE2q5PoIv03WRaaht0bH0EsBa1paL6xz8D9BkeM1mMfFVyZgtUxOgPIiioHpLxuE wn2 DIMITs7cTK/Fq2CfEYa3/sx563cetyVWDy5PhLlRJtjXOcxfmMKnCVn/9 s0k6Jx4HKZf5uZqce3c0kc0PQYvmepgbS241uzXhK85Fdv7wRflstJt2h4E64oE8QW/zM9 6kuUtEy U8BuqV TP3CJ1nvFvHluu1MheTFNFZLqg4CmY/MNAl8UbR9j/2BjDnDufpFR2eXQY1cmAHajWYkhbufYBJont4EQ7csncvXoVpQnkSMr33iYxs9IITWkyS5JXHfGWNezWzjf8fcZWqakU1sUasBMqZL8y7lhqovK8Le7Du31w==
   at System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError)
   at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString, Purpose purpose)
   at System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter2.Deserialize(String serializedState, Purpose purpose)
   at System.Web.UI.Util.DeserializeWithAssert(IStateFormatter2 formatter, String serializedState, Purpose purpose)
   at System.Web.UI.HiddenFieldPageStatePersister.Load()
   at System.Web.UI.Page.LoadPageStateFromPersistenceMedium()
   at System.Web.UI.Page.LoadAllState()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
2018-02-20 08:35:49,535 [YDAWBH120][Thread:15][FATAL] DotNetNuke.Framework.PageBase - An error has occurred while loading page.
System.Web.HttpException (0x80004005): The state information is invalid for this page and might be corrupted. ---> System.Web.UI.ViewStateException: Invalid viewstate. 
	Client IP: 173.205.33.19
	Port: 32433
	Referer: 
	Path: /default.aspx
	User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
	ViewState: madaVS9y7VjaOcngyxnu66OI23q8mHupnyPqWkhl PmmQiOBCfAxp/gMfVi8v2Y7NRcyv4EGRr4kxB47L3K aq xAV3Tm2UyQ718T6COjXKad5hy7iTK7tZqjPaMXH43 dAId398Qx4kx PKb6Hpd46ekm9SI3dAGvhyti5dIecpDNRYsMpGEcGmKaIx0/tmUvU7GchAweGbyxJ7loqmAS/3j08ctRCOx6SrWxWEH F4vnq63/1AVuQv9Azjg0OlhsLefyyRx6yizB60/Cm7k08YJCa0DVzMzD8hwji4t3WQqzHA9jjHIDgYaKgZkWGb17j0oDOsmieaCff84e4wvSrXJ1QOQky49tEIAhKv3IBhSdLT/uGIDG44YQprIm8t4TLcIA== ---> System.FormatException: Invalid length for a Base-64 char array or string.
   at System.Convert.FromBase64_Decode(Char* startInputPtr, Int32 inputLength, Byte* startDestPtr, Int32 destLength)
   at System.Convert.FromBase64CharPtr(Char* inputPtr, Int32 inputLength)
   at System.Convert.FromBase64String(String s)
   at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString, Purpose purpose)
   at System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter2.Deserialize(String serializedState, Purpose purpose)
   at System.Web.UI.Util.DeserializeWithAssert(IStateFormatter2 formatter, String serializedState, Purpose purpose)
   at System.Web.UI.HiddenFieldPageStatePersister.Load()
   --- End of inner exception stack trace ---
   at System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError)
   at System.Web.UI.HiddenFieldPageStatePersister.Load()
   at System.Web.UI.Page.LoadPageStateFromPersistenceMedium()
   at System.Web.UI.Page.LoadAllState()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
2018-02-20 08:35:49,535 [YDAWBH120][Thread:15][ERROR] DotNetNuke.Services.Exceptions.Exceptions - ~/Default.aspx?tabid=588&error=An unexpected error has occurred&content=0
System.Web.HttpException (0x80004005): The state information is invalid for this page and might be corrupted. ---> System.Web.UI.ViewStateException: Invalid viewstate. 
	Client IP: 173.205.33.19
	Port: 32433
	Referer: 
	Path: /default.aspx
	User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
	ViewState: madaVS9y7VjaOcngyxnu66OI23q8mHupnyPqWkhl PmmQiOBCfAxp/gMfVi8v2Y7NRcyv4EGRr4kxB47L3K aq xAV3Tm2UyQ718T6COjXKad5hy7iTK7tZqjPaMXH43 dAId398Qx4kx PKb6Hpd46ekm9SI3dAGvhyti5dIecpDNRYsMpGEcGmKaIx0/tmUvU7GchAweGbyxJ7loqmAS/3j08ctRCOx6SrWxWEH F4vnq63/1AVuQv9Azjg0OlhsLefyyRx6yizB60/Cm7k08YJCa0DVzMzD8hwji4t3WQqzHA9jjHIDgYaKgZkWGb17j0oDOsmieaCff84e4wvSrXJ1QOQky49tEIAhKv3IBhSdLT/uGIDG44YQprIm8t4TLcIA== ---> System.FormatException: Invalid length for a Base-64 char array or string.
   at System.Convert.FromBase64_Decode(Char* startInputPtr, Int32 inputLength, Byte* startDestPtr, Int32 destLength)
   at System.Convert.FromBase64CharPtr(Char* inputPtr, Int32 inputLength)
   at System.Convert.FromBase64String(String s)
   at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString, Purpose purpose)
   at System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter2.Deserialize(String serializedState, Purpose purpose)
   at System.Web.UI.Util.DeserializeWithAssert(IStateFormatter2 formatter, String serializedState, Purpose purpose)
   at System.Web.UI.HiddenFieldPageStatePersister.Load()
   --- End of inner exception stack trace ---
   at System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError)
   at System.Web.UI.HiddenFieldPageStatePersister.Load()
   at System.Web.UI.Page.LoadPageStateFromPersistenceMedium()
   at System.Web.UI.Page.LoadAllState()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
2018-02-20 10:24:27,332 [YDAWBH120][Thread:51][FATAL] DotNetNuke.Framework.PageBase - An error has occurred while loading page.
System.Web.HttpException (0x80004005): Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.

See http://go.microsoft.com/fwlink/?LinkID=314055 for more information. ---> System.Web.UI.ViewStateException: Invalid viewstate. 
	Client IP: 173.205.33.20
	Port: 32504
	Referer: 
	Path: /Default.aspx
	User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
	ViewState: ZWC/dJXdL04wdXyWG7jyrVxJvaMmKm6sdE4dZTf4TlVMBCGEx6tSpI UcwcOjIVZ8VCIugCDWqDhi64qCpWScdE9tgIOM63JDUw5JFwMdnvRvJ1aneWoCFguvZlijHPXOWDE2zLq L5Cjf0bz7OduNQOmCDlds2r9ILXPKm0rO9dEwC1SKRXvvmt4D4bLme8FHaYbCBzNfni8PUO1i6hSVlja0KvWcObag/pfSTq6OCML/I5bzS1w4nSrE9pMb AD9S5cU69yQM3TdzdEntsWqwVaSmhQ0KTd1rzUGSZRDUDD9fGuZjsqBkhE/Gokrt2rLjeAXMASRsDa2XBH9BAl9L/ktdV5jFkLkoDfL5SqT4aAcznyyOHlULJJ4HStM0n3 FUrQ==
   at System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError)
   at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString, Purpose purpose)
   at System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter2.Deserialize(String serializedState, Purpose purpose)
   at System.Web.UI.Util.DeserializeWithAssert(IStateFormatter2 formatter, String serializedState, Purpose purpose)
   at System.Web.UI.HiddenFieldPageStatePersister.Load()
   at System.Web.UI.Page.LoadPageStateFromPersistenceMedium()
   at System.Web.UI.Page.LoadAllState()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
2018-02-20 10:24:27,332 [YDAWBH120][Thread:51][ERROR] DotNetNuke.Services.Exceptions.Exceptions - ~/Default.aspx?tabid=588&error=An unexpected error has occurred&content=0
System.Web.HttpException (0x80004005): Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.

See http://go.microsoft.com/fwlink/?LinkID=314055 for more information. ---> System.Web.UI.ViewStateException: Invalid viewstate. 
	Client IP: 173.205.33.20
	Port: 32504
	Referer: 
	Path: /Default.aspx
	User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
	ViewState: ZWC/dJXdL04wdXyWG7jyrVxJvaMmKm6sdE4dZTf4TlVMBCGEx6tSpI UcwcOjIVZ8VCIugCDWqDhi64qCpWScdE9tgIOM63JDUw5JFwMdnvRvJ1aneWoCFguvZlijHPXOWDE2zLq L5Cjf0bz7OduNQOmCDlds2r9ILXPKm0rO9dEwC1SKRXvvmt4D4bLme8FHaYbCBzNfni8PUO1i6hSVlja0KvWcObag/pfSTq6OCML/I5bzS1w4nSrE9pMb AD9S5cU69yQM3TdzdEntsWqwVaSmhQ0KTd1rzUGSZRDUDD9fGuZjsqBkhE/Gokrt2rLjeAXMASRsDa2XBH9BAl9L/ktdV5jFkLkoDfL5SqT4aAcznyyOHlULJJ4HStM0n3 FUrQ==
   at System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError)
   at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString, Purpose purpose)
   at System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter2.Deserialize(String serializedState, Purpose purpose)
   at System.Web.UI.Util.DeserializeWithAssert(IStateFormatter2 formatter, String serializedState, Purpose purpose)
   at System.Web.UI.HiddenFieldPageStatePersister.Load()
   at System.Web.UI.Page.LoadPageStateFromPersistenceMedium()
   at System.Web.UI.Page.LoadAllState()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
2018-02-20 10:24:30,707 [YDAWBH120][Thread:64][FATAL] DotNetNuke.Framework.PageBase - An error has occurred while loading page.
System.Web.HttpException (0x80004005): The state information is invalid for this page and might be corrupted. ---> System.Web.UI.ViewStateException: Invalid viewstate. 
	Client IP: 173.205.33.23
	Port: 32420
	Referer: 
	Path: /default.aspx
	User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
	ViewState: qSslJGk1ndXM2pN1ogYYCFNZCuc4vV8KMfhFqFpZ26FTXCf8n5YHuEZpN10kNmXTwlMhIxuPfLzWoBAbrUKrq9WhP/jWTWJX/S25Nv8b3jYVK0QsTZ1mD9cz7gh13C9TilMi0fB2pguh6RzJdvbSaCUQUcweoUUZQJWPUp4 yZudf6ss98uBETkyWd3rqf6 7NPB6XXEZ6xixgNzruXqzztaMufcDNkhgHLsfKTZs7UfXAnT4coQBwStUWL2IqhpBzMEcfULUZy3FAfB6Gs9pcDpnaYYbhPPQosky5ypm6xyQ4wxDWF4D5Ydmc8M6/X4Ij9kMsr2RAEJSilOBhGz8zoL4RoGfrbtam2IqSZdgE1ULKsgnzRaGzRPJG1ZAGMjpNNsvg== ---> System.FormatException: Invalid length for a Base-64 char array or string.
   at System.Convert.FromBase64_Decode(Char* startInputPtr, Int32 inputLength, Byte* startDestPtr, Int32 destLength)
   at System.Convert.FromBase64CharPtr(Char* inputPtr, Int32 inputLength)
   at System.Convert.FromBase64String(String s)
   at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString, Purpose purpose)
   at System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter2.Deserialize(String serializedState, Purpose purpose)
   at System.Web.UI.Util.DeserializeWithAssert(IStateFormatter2 formatter, String serializedState, Purpose purpose)
   at System.Web.UI.HiddenFieldPageStatePersister.Load()
   --- End of inner exception stack trace ---
   at System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError)
   at System.Web.UI.HiddenFieldPageStatePersister.Load()
   at System.Web.UI.Page.LoadPageStateFromPersistenceMedium()
   at System.Web.UI.Page.LoadAllState()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
2018-02-20 10:24:30,707 [YDAWBH120][Thread:64][ERROR] DotNetNuke.Services.Exceptions.Exceptions - ~/Default.aspx?tabid=588&error=An unexpected error has occurred&content=0
System.Web.HttpException (0x80004005): The state information is invalid for this page and might be corrupted. ---> System.Web.UI.ViewStateException: Invalid viewstate. 
	Client IP: 173.205.33.23
	Port: 32420
	Referer: 
	Path: /default.aspx
	User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
	ViewState: qSslJGk1ndXM2pN1ogYYCFNZCuc4vV8KMfhFqFpZ26FTXCf8n5YHuEZpN10kNmXTwlMhIxuPfLzWoBAbrUKrq9WhP/jWTWJX/S25Nv8b3jYVK0QsTZ1mD9cz7gh13C9TilMi0fB2pguh6RzJdvbSaCUQUcweoUUZQJWPUp4 yZudf6ss98uBETkyWd3rqf6 7NPB6XXEZ6xixgNzruXqzztaMufcDNkhgHLsfKTZs7UfXAnT4coQBwStUWL2IqhpBzMEcfULUZy3FAfB6Gs9pcDpnaYYbhPPQosky5ypm6xyQ4wxDWF4D5Ydmc8M6/X4Ij9kMsr2RAEJSilOBhGz8zoL4RoGfrbtam2IqSZdgE1ULKsgnzRaGzRPJG1ZAGMjpNNsvg== ---> System.FormatException: Invalid length for a Base-64 char array or string.
   at System.Convert.FromBase64_Decode(Char* startInputPtr, Int32 inputLength, Byte* startDestPtr, Int32 destLength)
   at System.Convert.FromBase64CharPtr(Char* inputPtr, Int32 inputLength)
   at System.Convert.FromBase64String(String s)
   at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString, Purpose purpose)
   at System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter2.Deserialize(String serializedState, Purpose purpose)
   at System.Web.UI.Util.DeserializeWithAssert(IStateFormatter2 formatter, String serializedState, Purpose purpose)
   at System.Web.UI.HiddenFieldPageStatePersister.Load()
   --- End of inner exception stack trace ---
   at System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError)
   at System.Web.UI.HiddenFieldPageStatePersister.Load()
   at System.Web.UI.Page.LoadPageStateFromPersistenceMedium()
   at System.Web.UI.Page.LoadAllState()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
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