Blank white pages are usually a sign of a suppressed php error, check the server error logs which should be provided via your hosting control panel and see if you have any errors being logged which may give an indication to what the issue is
It was my bad. I went back through the recent additions I made to the site one more time. I swear the 15th time is a charm. I noticed that when installing the Redbar mod I made an error.
In the Language file of all places. permissions_phpbb.php I added the code for that mod after the )); some some silly reason. But anyway moved that part and there it was. I did not realize that a language file could have that much effect on everything.