Cannot connect to database. :(

[JesusChrist]

See here. The recommended version of MySQL you can run is 8.0.

thanks! All solved

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--------------  FINAL UPDATE

Installing the correct SQL (MySQL) didn't solve the problem.
Apaprently, the new SQL versions have some sha_password encryption.

To fix this problem, I had to change the new default sha_password login stuff, to the old one.

ALTER USER 'username'@'ip_address' IDENTIFIED WITH mysql_native_password BY 'password';

Replace username with the one you use, of coarse.
ip_address with localhost
and password with of coarse, your password.

Fixed.