To keep the storage room from locking, you need to disengage the bolt at the top of the door so it is no longer embedded in the door frame. That way, you will always be able to close the door (please do so for safety of play) but still be able to pull it open at the end of the evening.
Please restore the bolt to its locking position at the end of the evening.
Need picture(s) here.
Almonte Pickleball Club 