Updating page content problem

Hi , I post firstly in this tread but I had no any solution .here
Possibly new topic will grab more attention .
After updating everything works sharp till yesterday.
Now I can not make changes to pages , I can see all good in preview but after update page – nothing is changing .

I have latest version of enfold 4.5.7
latest wordpress 5.4.1

The only thing that cross my mind is I changed PHP to 7.4 and complete Yoast configuration wizard
but I downgrade back to pho 7.2 and still problem appeared .

I also reinstalled manual Enfold folder for fresh one.(in case of any error there)
I disable yoast plugin
I disable wp fastes cache plugin
I delete all cache in browser , cache in website
I tried different browser and finally computer
presently I back to PHP 7.4.4
php cash is ok average 20%
I reinstalled wordress
nothing helped….
I change editor back and forward classic editor/ block editor
I contacted my hosting provided , at this point they do not find anything wrong but I’m still waiting if they can help .

Any ideas what can cause problem ?
I do not know what next ….
There is short video which showing my problem :
https://we.tl/t-bBNHauYjev

Thank you

edit:
I found out that I can add only small elements , like few txt sentence… when element cross some size it is not possible to save updates

I get message from hosting provider they suggest to contact with wordpress support

edit:
still nothing ,
I found out this message in wordpress health info :

The REST API is one way WordPress, and other applications, communicate with the server. One example is the block editor screen, which relies on this to display, and save, your posts and pages.

The REST API call gave the following unexpected result: (500) Your server is running PHP version 5.4.36-0+tld0 but WordPress 5.4.1 requires at least 5.6.20..

I manually changed PHP to 7.4 version so not sure why this warning appear .

Also I switch theme to Twenty Twenty and I’m able to upload content and save there . I can see updated content live.
But after switching back to Enfold its despairing.

Hosted provider check everything and all seems to be OK.

Help!

• This topic was modified 4 years, 6 months ago by digaluk.