Just letting you know this is on our radar. Sorry for the late response.

I'm back with a couple questions. I tried to get this error to show up, here is what we did:

1. Another staff member slotted herself for 4 slots, and put me in the 5th slot, for an existing CW she owns.
2. I rejected my slot.

After rejecting the slot, the slot was given to her. She edited the slot back to my username, and I got the payment ping again. We didn't encounter any errors.

Is this similar to what you did? Could you describe in more detail (if you remember) what happened when you ran into the error? For example:

1. Were you editing the username, price, both?
2. Were you editing just a single slot, or multiple slots at once?
3. Were the other slots already paid?
4. Did you run into this issue multiple times? (With multiple CWs?)

Thanks.