Hey I have 6 websites on my Hostmonster server. About a week ago, 3 of them started returning 500 server errors. I hadn't modified any of them. No new themes, plugins, not even posts. I only found out that they had server errors cause a friend tried to visit my site and told me. I was only able to check how long they had been down by looking at my Google Analytics.
All 3 of the affected sites are WordPress powered. In addition, there are 2 more WordPress sites that were unaffected, and one Non-wordpress site.
I have tried the stock responses that Hostmonster suggested to no avail. I tried renaming my .htaccess document, with no effect (one of the sites doesn't even have one). I tried renaming my themes folder and my plugins folder to see if it resolved the problem...nothing. One of the sites started returning a WSOD instead of a 500 server error-but that was it. Didn't really make sense that it would be a plugin or theme anyway, since I didn't change anything...
Kind of at a loss about what to do here. I have tried checking for a problem in the error logs by refreshing the website and then refreshing the error logs, but I never see my IP...Any thoughts or suggestions?