I revived the website with no problems.
I found 3 issues,
1- with the CircleFlip portfolio plugin (which was minor as it was in the name of the folder)
2- with the builder js file aqpb3.9.js (I replaced the file)
3- tooltip.js (I found the error in an undefined variable)
I’ve also increased the php memory limit.
All errors are fixed, but unfortunately the page in question above is unfix able as it was saved incorrectly due to the above errors. I apologize for that, please feel safe to edit all other pages.
Note: due to the last wordpress update, you would have to click on the builder elements to add them instead of dragging from the top selection area to the bottom editing area.