Module Admin Fail

I added a couple modules, I set to available for all three (admin,reseller,user), but when I go to Save the changes in Module Admin, it just stops on a blank page : http://MyServerIP/?module=moduleadmin&action=EditModule

Are there some permissions I need to CHMOD?  Any way to fix or work around?

(CentOS 7.2)

Modules attempted to add : Monsta File Manager, Sentastico

I have upgraded some things.  Current versions are :
Apache 2.4.6
BIND version 9.9.4 (would like to update asap as 9.9.4 is deprecated)
MySQL version 5.7.12
Postfix version 3.1.0
PHP Version 5.4.45