I have a website that ranks really slow on the google speed test and suggested I optimize all the pictures. I installed reSmush.it and it wouldn't work and I was getting "Failed to load resource: the server responded with a status of 500" error.
I saw another topic with a similar problem and suggested I do the following which I did:
-I renamed the .htaccess file
-I disabled all plugins
-I tried the default theme
-I checked the memory limit which is set at 64mb
When I press f12 I get:
Failed to load resource: the server responded with a status of 500 (Internal Server Error) http://casafinders.es/wp-admin/admin-ajax.php?_fs_blog_admin=true
I’ve accessed the admin-ajax.php but I don’t know if there’s something wrong or not. Here’s some screenshots:
I've also uninstalled and reinstalled it, and I've contacted the support of the plugin on wordpress.org 4 days ago but haven't had any response yet.
Does anybody have any suggestions ? what could I check next ?
Any help or suggestions would be greatly appreciated,
I'm not one to recommend changing core WordPress files. Those changes will be wiped out in the next update so if you must go that route I would document every file/line/variable changed.
Could this be a resource issue? Did you check the wp-config.php file to see what your memory settings are?