Column count of mysql.proc is wrong. Expected 20, found 16. The table is probably corrupted

Question

I am using 000webhost.com and I am using phpMyAdmin there. I am getting this error from MySQL when I run my PHP script as the title says:

Column count of

Answer 1

I had this error as well. I fixed it by running

mysql_upgrade -u root -p

Also, restart the mysql service by running

service mysqld restart