"Server error - please contact your administrator (13)" for everything

Hi

In the version 6.4 we get the message of the problem if the order is locked or missing something or wrong data.

but now in the version 6.5 for all the errors doesn't matter which error always in the client is receiving this message

"Server error - please contact your administrator (13)"

somebody can help me with this.

1) is possible customized the error or changed this standard message to the return of the backend, because sometimes is order locked and this is not a server error.

Best Reagrds

Andres De la pava