Performance Issue: "URL not found" and "JSON error" while saving changes

Flocah

Hi all,

I did setup a Wordpress page using your theme (Hupenhalter.de).

All of a sudden I have some performance issues. When I make changes in the editor I get a JSON error that changes cannot be saved to the page, but somehow they get saved anyway.

The bigger one is that when clicking through the menu bar from time to time I get an "URL not found error". Then I have to reload the page for a couple of times and all of a sudden it works.

Can you please help me to find out the root cause?

Thanks

Flo

Phil

Hello,

Please, check the following article, and follow the tips from there.

https://webspeedtools.com/fix-the-response-is-not-a-valid-json-response-wordpress/

If none of them will help, please, contact your hosting provider, and ask to allow all the rules that ModSecurity blocks incorrectly.

Thanks

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