[Hall of Famer]

@KaceKuma:
This is strange, your server does not tell you what the error may be? If so, check your root directory and see if there is a file called error_log being generated. Copy/Paste the last lines and I will see what errors you are getting. Chances are you are missing some files. Note if your database table structure differs from a Mys v1.3.0 fresh install, theres no way to upgrade with the simple upgrader. In such a case, do it manually.

@Silverdragontears:
Yeah, I do not see the difference here besides you need to replace $pet by $row, unless you have another table storing pets descriptions. If this is true, just join another table, plain and simple. The codes I just posted should work fine for ya.