Import to google spreadsheets, 524 error?

Question

Google Sheets

Greetings, the problem is the following, for more than a year the functionality of importing records from the site into a Google spreadsheet worked fine, 2 days ago some of the records stopped being imported ...
When it was possible to repeat the bug, the request to the handler returned a 524 error from cloudflare, the table was cleaned from 12000 records, up to 3000 the frequency of the error has decreased, but still remains ...
There were no manipulations with the code, it just stopped working normally and that's it.
The code was tested in a newly-created table, where it worked without problems.
The site uses ssl from cloudflare.
Tell me at least where to dig)

Answer 1

I also have a problem with Google services
with jira, the
support writes that Google has a big delay and if the error wait 5 minutes try again
but it works in the new plate