Save or save and create new problem

Since the last update (7.9.4), save or save and create new sometimes fails and end up in a blank page (about 3 times amongst 5). Ennoying problem… I tried repair several times, but nothing changes.
:oops:

Hi,

Please can you report this issue on our github page?

https://github.com/salesagility/SuiteCRM/issues/new

Can you please include more details about your configuration?

Such As

Web Browser
Web Server
Database Server
Versions of SuiteCRM, web browser ect etc…

This is what I find in the PHP error log :

[25-Apr-2014 12:26:01 UTC] PHP Warning: PHP Startup: Unable to load dynamic library ‘/usr/local/lib/php/extensions/no-debug-non-zts-20090626/zip.so’ - /usr/local/lib/php/extensions/no-debug-non-zts-20090626/zip.so: cannot open shared object file: No such file or directory in Unknown on line 0