MySQL error #1045

Hey y’all. Im new here. So i have a database error on my own website and I was trying to activate the Super Privileges on my account for editing a variable, so I tried to enter this code in the console:

GRANT SUPER ON . TO user@‘id20984398_root’ IDENTIFIED BY ‘(mypassword)’

but everytime I do this I allways get this error:

#1045 - Access denied for user ‘id20984398_root’@‘%’ (using password: YES)

Im pretty sure I entered the correct credentials. I have tried many ways to fix this error, but to no avail and i ended getting other errors. I’m new and starting to learn coding, and I don’t exactly know what to do. Any help would be appreciated.

Hi!

Databases are shared on free plans, with no super privileges available.