Mysql Error 1449 the User Specified as a Definer Does Not Exist

Mysql Error #1449

1449 - The user specified as a definer ('username'@'%') does not exist

Basically, MySQL is wining about the user that created a procedure is now undefined. It could have been deleted or it could be that you copied a mysql_dump and carried an inexistent user.

GRANT ALL ON *.* TO 'username'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;

Here you have to change username and password with whatever you need.