Paper Account Stock Delisting

[Bobody]

I have an issue similar to this post:

Symbol was purchased, then became untradable

This Monday I bought (on my paper account, luckily) symbol PYX. Today I wasn’t able to place a sell order for it for this reason: APIError: asset PYX is not tradable What would happen if I bought this or a similar symbol for real money? How would I be able to liquidate a position for a symbol that was tradable when I bought it but is no longer tradable?

I placed a buy order on Luckin Coffee LKNCY which was subsequently delisted and moved to the pink sheets. I have not been able to liquidate this holding in my paper account. What is the process to liquidate or transfer these securities? For the paper account? For a real money account?

Thanks!