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
password with whatever you need.