I followed these steps and problem is caused by Eval base64.
Now I’m trying to get rid of this bug.
Thank you!
Hi John, thanks for reply!
The problem is that every post i have published on my website, if i want to make changes at each of them on wp-admin area, everything i add or change isn’t updating. UPDATE button does nothing (only remains loading all time).
When i deactivate for a while ACF plugin, this problem does not occur.
But, the same problem (not updating anything) is with custom fields too.
I cant make changes on existing fields i have created with ACF Pro plugin, because this cannot be solved by deactivating for a while ACF plugin (as I can do with other posts).
Am I clear now?