This should be fixed guys! Can you confirm?

Thank you for confirming. I've just made another change to make sure the item is correctly removed from your inventory.

The database error seems like that error is being caused by a problem with adding it to the Friend Feed (normally when a potion gets used, your friends will be able to see that you used it in their Friend Feeds) I am still working on fixing that part :)

Yes, please delete the potion.

I did test by using a Potion on my own pet, and it seemed to delete it correctly. However, I've just removed the Friend Feed code for now since it was still potentially causing an exploitable bug.

What that means is potions should be used up correctly and can't be exploited anymore, but potion usage won't show up on friend feeds. We'll keep this forum topic open and I'll update once I fix the related database error and can put the Friend Feed code back.

Could you please let me know if using a potion on your pet still results in a database error?

Awesome! I had fixed the friend feed code and put it back, just needed confirmation it is working. Thank you for helping test it out. Closing this as resolved <3