The Stags are looking for a new temporary home after being locked out of Field Mill by landlord Keith Haslam.
And if they do not find a solution by Monday, 20 December they could face a fine and possible points deduction.
Alfreton play in Blue Square Bet North and Ilkeston were also playing in that division before they were wound up over unpaid tax bills in September.
Source: BBC Sport
Source: BBC Sport