Offline Payments - Gone in Drop-Down

I have been using the software for about 2-weeks and now when I go to add "Revenue" I can not select an Offline Payment. The "code" of the payment is showing up in the drop-down box.

I am using v. 2.1.5 on my own server

https://i.ibb.co/ry0MXHD/revenue.jpg
https://i.ibb.co/c2rqYhv/offline.jpg

Thanks

I think I found it. I had imported all of my organization's "members" into customers and maybe because I had a member as user_id 1 (which would have been their Membership ID), it had a conflict. I deleted the company and added a new one. Imported all transactions and customers (without user_id).

Now I have to go and re-upload all checks and receiepts...hahah