I cannot delete a user role in admin users. When I tried, It returns me this message:
DotNetNuke.Services.Exceptions.ModuleLoadException: Cannot resolve collation conflict for equal to operation. ---> System.Data.SqlClient.SqlException: Cannot resolve collation conflict for equal to operation. at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlDataReader.ConsumeMetaData() at System.Data.SqlClient.SqlDataReader.get_MetaData() at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior) at System.Web.Security.SqlRoleProvider.RemoveUsersFromRolesCore(SqlConnection conn, String usernames, String roleNames) at System.Web.Security.SqlRoleProvider.RemoveUsersFromRoles(String[] usernames, String[] roleNames) at System.Web.Security.Roles.RemoveUserFromRole(String username, String roleName) at DotNetNuke.Security.Roles.RoleController.DeleteUserRole(Int32 PortalId, Int32 UserId, Int32 RoleId) at DotNetNuke.Modules.Admin.Security.SecurityRoles.grdUserRoles_Delete(Object sender, DataGridCommandEventArgs e) --- End of inner exception stack trace ---