I applied all the steps, provided in the link, the result still the same
What i figured out, it was admin- ajax error 403
it gave error with demo pages, if you are creative page from scratch it wont show the error
but i need to edit demo pages, so that i can save time,
I am behind my task and the clock is ticking.

Pls solve this issue, thanks

pls, verify my theme and remove any restrictions, on my website so that i be to edit my website.
Thanking you, Pls reply, since i didnt received any reply, from your side.