I help manage my friend's blog and recently he's been having a "Not Found, Sorry, but you are looking for something that isn't here" issue.
The blog works alright for him but it did not for me initially as I received the same message. Looking around online, someone suggested updating the permalinks. I did that and the blog started working for me. However, it's still not working for others, while it strangely is for some. (No remedy from clearing cache or using different browsers ie it works for some on Chrome, but doesn't for some others.)
My friends mentions to me that on the previous day, the site went down due to an issue with one of his plugins. Just gonna copy/paste what he shared with me.
"It went down the other day from using too much RAM, which I think was a result of my cache plugin not working (without me realizing). For some reason it just stopped and was showing errors, saying that a file was missing. I switched to a different plugin, but now it seems my main page isn't showing like in the posts above. Apparently direct links to posts work, though -- just not the main page.
I'm currently using Super Cache, but the one I usually use (until it stopped working) is W3 Total Cache. I'll copy and paste the error it shows when I try to activate it.
Fatal error: Uncaught exception 'FileOperationException' with message '/home/theproph/public_html/wp-content/w3tc-config/master.php could not be created, please run following command:
Any help we could get would be most appreciated.