Chief Keef's legal problems continue to mount.

The emcee can't go back to his home state of Illinois because of outstanding warrants. But he's being sued in his home city of Chicago for ditching a concert at an Alabama fraternity after taking the cash advance.

Keef -- through The Booking Collective, LLC --  had been contracted to play the SAE frat at Auburn University on April 25th. He was to be paid $22,000 for his performance, $12,000 of which he received upfront.

But he never showed.

“Chief Keef was posting on Instagram about being in the studio working on music on the very day/evening he was supposed to be performing at the Planned Concert,” the suit states.

Since Keef can't go to Chicago, will he send his hologram to take the stand for him when the case goes to trial? If he had that fancy tech back in April maybe this all could have been avoided.