Upgrade from SuiteCRM 7.11.1 to 7.11.2 crashed my installation

[size=5]Please help !
The Last Update from SuiteCRM 7.11.1 to 7.11.2 crashed my installation
Everything was fine until I made this Update with the upgrade-manager to version 7.1.2

Now the login page is a BLANK page

and we cannot login or do anything to find the problem.

Please help ![/size]

This helped:
https://suitecrm.com/suitecrm/forum/installation-upgrade-help/21919-update-to-7-11-2-total-crash

Solution - thanks to:
https://suitecrm.com/suitecrm/forum/installation-upgrade-help/21919-update-to-7-11-2-total-crash