White screen or internal server error 500 after Nextcloud 13 install

Thanks,
and i noticed that after update to 13 from testing sharing menu(autocompletion works fine) shows only users in logged user group but only respect local groups if user is in AD/LDAP it shows all users. Also if i put whole name i can share file with any user (no difference local or LDAP) how to prevent this? This reveal users names to logged user (you can try few user names to check if user is part of nextcloud instance), but shouldn’t show user that is not part of the group even whole name is typed.
I think LDAP group problem is because any user is in Domain Users group and option to exclude group from Domain Users not working.
How to fix this? Cheers and thanks for any advice.