My site was working normally, then it suddenly began showing this error a few days ago. Home page loads normally, I get the error for inner pages.
I disabled all plugins to check if one of them is causing the problem. But I got the same error. Then I enabled all the plugins, and it returned back to normal.
Now everytime I get the error, I have to disable-enable all plugins.
My .htaccess has only code required for permalinks.
Any help is appreciated. My site: Tayland Gezi Rehberi