The landlord, which owns the Hartford Building that houses Twitter’s headquarters, claims the company owes $136,250 in unpaid rent. It allegedly notified Twitter on December 16th that it would default on its lease if it doesn’t receive payment, but Twitter never complied.

This comes after last month’s report from The New York Times, which indicates Twitter has stopped paying rent on all of its global offices “for weeks” as a cost-cutting measure. Twitter’s also facing a lawsuit for allegedly failing to pay a $197,725 bill for two private jet flights.