Internal bag error

Hello people! Got this error , unable to send in game mail to other toons.
What i have tryed that far: reset game, repair (nothing was found by the way), delete wtf/cachec/interface. Nothing.
Anyone who had this and can help me?
Only on 1 toon i have this issue. Made a ticked already but its kinda strange because time for an answer rises , yesterday it was 1 day for an answer, now its 2day and 23 hours…Hmm

The displayed ticket time is the average longest ticket in the queue, yours may be answered faster.

Hi!
The exact same thing is happening to me. Only with one character I can’t send any mail.

Already tried reloading, re-intalling mail addon and reseting game folders (Interface, Chache and WTF).

Did you manage to fix it?

nope, i just deleted the items i was sending, it was 16 pet charms.