I just installed version 14-1 and apparently my "Internal Error" is gone.

What about you, Qole?

EDIT:

Well, I spoke to soon. "Internal Error" is back. But at least now I think I know what is going on:

I use Modest with two Gmail accounts. One POP and one IMAP. The POP account works well with the automatic updates. No problems at all. But the IMAP is the one causing the crash.

With version 11 I did not have the error messages, but I did not have the automatic updates messages for the IMAP account either. So now I disabled the IMAP account (I will check it with the browser) and will stay with version 14.

I hope in version 15 the problem with Gmail IMAP is finally solved.