Use as featured image – Stalls/Not Working

Hey everyone,

I have done lots of research on this with no specific answers. I have tried many things like disabling plugins and going back to default themes. My issue is that when I click “Use as featured image” for a post it says “saving…” but does not respond. On rare occasion it does go through. But most of the time it stalls.

I checked for jquery/javascript errors in Chrome and it says this after about 10 seconds after clicking “Use as featured image”.

Failed to load resource https://www.mywebsite.com/wp-admin/admin-ajax.php
POST https://www.mywebsite.com/wp-admin/admin-ajax.php load-scripts.php:4
send load-scripts.php:4
f.extend.ajax load-scripts.php:4
f.(anonymous function) load-scripts.php:4
WPSetAsThumbnail load-scripts.php:31
onclick

Here is an image of what I see:

https://img846.imageshack.us/img846/3023/setfeaturedimagesaving.png

I heard that this could be a host security measure that causes this error on GoDaddy servers. I am on a VPS with GoDaddy. If someone knows what this is exactly could you please help me find out how to fix this. Thanks!