"lb-run --path-to-project" not working

Traceback (most recent call last):
  File "/cvmfs/lhcb.cern.ch/lib/var/lib/LbEnv/2252/stable/linux-64/lib/python3.8/site-packages/LbEnv/ProjectEnv/script.py", line 1134, in main
    super(LbRun, self).main()
  File "/cvmfs/lhcb.cern.ch/lib/var/lib/LbEnv/2252/stable/linux-64/lib/python3.8/site-packages/xenv/__init__.py", line 289, in main
    self._makeEnv()
  File "/cvmfs/lhcb.cern.ch/lib/var/lib/LbEnv/2252/stable/linux-64/lib/python3.8/site-packages/LbEnv/ProjectEnv/script.py", line 806, in _makeEnv
    if self.project.lower() == "lhcbdirac":
AttributeError: 'NoneType' object has no attribute 'lower'