Cornerstone does not save changes in the page

[Yazan]

Hello.
I have been using the cornerstone for a while. And everything was working well. Today when i tried to make changes or create a new page with cornerstone, i got error of “Uh oh! Content failed to save.”

Before opening the ticket i have check similar topics. And follow the instructions on those but nothing changed i still get the same error.
Things i have done as they suggested.
Clear the cache
Update/reinstall theme and cornerstone
increase memory limit in the wpconfig
create a new htaccess file

Waiting for your help thanks

[Prasant]

Hello Ahmet,

Thanks for asking.

I see following error message when opening the page in Cornerstone Failed to load resource: the server responded with a status of 500 () https://28.com.tr/cornerstone-endpoint.

I suggest you to please take a look at the solution mentioned in following post:

Cornerstone Not Loading Error in Console

Thanks.

[Yazan]

Hi. And thanks for the answer.
I have changed all the files and directories permisions as it’s written on the link. And cleared the cache. But nothing changed. I still get the same error.
Do you have any other solutions for 500 error?
Thanks again

[Yazan]

Hello again.
After trying everything written on apex. I solved my problem with deactivating all plugins except cornerstone. Hope this would help other who faces same problem.
And many thanks for your help.

[jade]

Glad to hear you got it sorted, Ahmet.