I’m so, so, so sorry right now.
There was no problem with the absolute theme.
The cause was database authorization problems.
Only three (CREATE, DROP, CREATE ROUTINE) were specified in the structure of DB privileges.
I’m so sorry. And thank you.
I wish you the everlasting development of your company.
I’ll close the issue.
Thank you.
1. PHP memory has been raised from 126M to 256M.
But the results are the same.
2. Yoast SEO is the latest version.
3. Everything has been updated.
6. WordPress 5.5.3 is used.
7. It’s a new site.
I’m sorry, but items 4 and 5 are technically incomprehensible.