WP-Admin going blank from memoty issues on pligins?

Got a problem on a site hosted on web.com. I have WordPress up to date and I’ve had a lot of plugins for awhile including Pods CMS, Shopp, NextGen Gallery, GigPress and more. It was running fine for awhile but now while the site is running, I can no longer get into wp-admin past the login screen. If I login, I get just a blank white screen. What’s really strange about this is this is only happening no Macs and PCs. On iOS and Android, this doesn’t happen. How strange is that?

So I turned off all plugins and started reactivating them one by one. For a while I thought maybe Shopp was the culprit, but I don’t think that’s the case at all. I was turning them back on in alphabetical order so I was late in my plugins at the ‘S”s. I finally decided to turn Shopp on first and there were no issues doing that.

Which leads me to believe that it might be an issue with PHP system memory. Web.com support doesn’t believe that but they’ve been in this state of denial before.

Has anyone had a similar issues like this happen previously? Is it memory or could it still be a plugin conflict? Or something completely different?