[BirdOPrey5]

The problem is with the line:

while($notifications_ids = $db->fetch_array($notifications_get))

You should update all database calls from $db->blah_blah_blah to $vbulletin->db->blah_blah_blah

and make sure you've made $vbulletin global in the plugin by calling:

global $vbulletin;

if it hasn't been done already in the code... it doesn't hurt to call it again if you're not sure.

While you are allowed up update a mod for personal use, please do not post any additional full plugins from the mod- the code is copyright from the original author and he did not give permission to re-use the code.

Only the most minimal code necessary to answer a specific question should be posted in the future.