Outlook EAS sync problem

Hi!
I have a little problem with one zimbra user.
Zimbra version:
8.6.0_GA_1153.FOSS
Zextras:
2.2.0
Outlook:
365, 2013

If i add new user in outlook, start sync but after 250-300 mail, start calendar sync and Outlook crash with "pstprx.dll" error, then at every startup still crashing.
I readded user, reinstalled outlook, reinstalled windows, try on another pc, so i think something wrong in user profile on server.
Someone meet this error before me?
Thanks.