Yes, now everything is ok, but what was the cause of the error ?
Thank you for your help 🙂
HI. Thank you for your answer. The site is 6 months old and is on this server all the time.
At the beginning, such a screen appeared – https://drive.google.com/file/d/1xA1PVeOx0Oy1LS-49VLF2ueUURkrU3cO/view?usp=sharing
Then the hosting provider informed me “it shows that your domain’s A Record is not pointing to your Linux Hosting” – but before that everything was ok.
When I tried to log in I saw such a screen – https://drive.google.com/file/d/1CamRQBvzhKSsl_7oLkrf4uM0EqGKeqx0/view?usp=sharing
After the repair works of the hosting provider the website finally works but there was information after logging in – https://drive.google.com/file/d/1OZlRhoiwmVQ2wKDFMwxJABcyqKxChYiA/view?usp=sharing
Now the page works but instead of the home page, the blog page is displayed and can not be changed in the settings. This option does not work.