[Q] Nexus S - Cyanogenmod 10.1 problem

Hello,
I searched forum, but I could not find solution to my problem. I have Nexus S with Cyanogenmod 10.1. Problem occured last week and I could not solve it. Currently, I am running 8th March nightly.
When device boots I imediately receive message about google.com.gapps stopped working. I cannot use google play (wich bothers me a lot) and CM updater. I tried to install two different packages for gapps (android 4.2.2 but it did not help). I reinstalled ROM, gapps, wiped cache and dalvik - still no solution.

Please help, I hope I posted message in right forum!