An error occurred (500 Error)

[A.G.]

Have this Error:

Any ideas ?

[Jim M]

The table core_sessions has crashed. Your hosting provider will need to repair it or restore from a backup.

[A.G.]

Problem solved.

Solution, like @Jim M.
Table from databese through provider resore.

Thank you all

[Marc]

Glad to hear things are now working 🙂