I am using MAMP.
It seems that when I tried making some changes with the passwords, I messed it up and now I can't access anything on phpMyAdmin.
I've tried to reinstall MAMP, but all I get is still the same error.
Does anybody know how to fix this?

UPDATE: Even in terminal I get the same error
/Applications/MAMP/Library/bin/mysql --host=localhost -uroot -proot
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)