I had the same problem - rip a copy of GoogleCalendarSyncAdapter.apk from an ICS gapps package, copy it to system/app set permissions and reboot - worked for me.
I will test this out and if works add it to the modified gapps package i have posted...
I take no credit for any of these what so ever just trying to help people out. All of these can be flashed through recovery.
Here is a link to the modified version of the ROM. (By modified in mean the update-script with the line already deleted)
There is a script that allows you to move forward now in case of 235 installations.
THIS WILL NOT ALLOW YOU TO FXZ 902 / 905 BACK ONTO YOUR PHONE - IT WILL ONLY FIX ERRORS SO YOU CAN FLASH THE NEXT ICS LEAK
For all of you who are supposed to be "Senior Members" you sound like a bunch of whiney little babies bickering back and forth. All of you need to grow up!
This is a community that is supposed to help each other not be little people for lack o...
Did the PIE exploit on 19.5.3 than ran the WP OFF Exploit installed SuperSU and SuperSu Pro from the play store also installed Busy Box from play store then ran it then installed SS rebooted to recovery installed the SuperSu 1.99r4 update zip