Error when applying to a clan

I have just tried to apply for a clan and I got this message.


Server Error in '/' Application.
String or binary data would be truncated.
The statement has been terminated.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Data.SqlClient.SqlException: String or binary data would be truncated.
The statement has been terminated.