Failed to load resource: the server responded with a status of 500

[pauldeasy]

Hi,

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

https://snag.gy/ChbzSw.jpg

I’ve accessed the admin-ajax.php but I don’t know if there’s something wrong or not. Here’s some screenshots:

https://snag.gy/jCt7mR.jpg
https://snag.gy/TUw0oN.jpg
https://snag.gy/p4yiqH.jpg

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,
Thanks, Paul.

[Muse]

@pauldeasy

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?

HTH! 😉