When trying to add a supplement purchase. : Internal error: the referenced encounter no longer exists. 1 0

Situation
Internal error: the referenced encounter no longer exists. 1 0

(Yes, I have fine tooth combed this post)

Goal: Adding a purchase for a non-perscription supplement.

(Yes, Admin > Features > Drug and products is set @ “Invetory and sell both drugs and non-drug products”)

I added inventory of item:


&

(I’ve been playing around with all the numbers)

Inventory Management:

OpenEMR Version
I’m using OpenEMR version 7.0.0 (2)

Browser:
I’m using: Chrome

Operating System
I’m using: W10

Logs
Did you check the logs?

Hello? Anyone? I tried to be as clear as can be and include all the info. What else do you need to help solve this problem?