As others have reported, they can't put a sell order.
For me, I just let it goes into the abyss. If lucky, after SLNN goes private, I might just receive a cert stating I'm a shareholder. Frame it up & hang on the wall. LOL!
Maybe SLNN wants to delist & reorg. After that then re-list it as a brand new co. with new shares structure in a new name. Start everything afresh, a clean slate, a new beginning. JMO.