Why are there no tables even though they are (mysql)?

Question

MySQL

Greetings!
Something very strange happened on the server.
There are tables, but there are no tables O_o.
Those. SHOW TABLES;shows,
but select * from tablename says that there is no such table.
mysqlcheck says this:

Error    : Table 'dbname.tablename' doesn't exist
status   : Operation failed

and so with everyone!
What could happen (I suppose fs damage because the server just went down at that moment) and most importantly - how to fix it?
PS there is a data backup, there is no structure backup.

Answer 1

Make in the console
Generally such problem was. The database user was given the right to connect, but they forgot to give the right to sql commands. Then such a contraption comes out, maybe it?
If you write in php look inside the engine. MB there are migrations and you can roll them to return the structure.