It claimed that an afternoon court case it had sought, due to start at 3pm, precluded it from attending the parliament sitting.
The legal action is to try and force the Speaker, Gracia Shadrak, to allow a motion to have himself replaced as speaker.
The Bob Loughmann government wants Mr Shadrak gone after he allowed a vote of no confidence in the government, which he agreed to allow next Monday.
And Mr Shadrak says the motion for his removal can be heard at the same time.