Not working in Glyphs 2.5.1

[Malou1]

Remove Layer specific Metrics Keys.py I get this error :

Start
Traceback (most recent call last):
  File "Remove Layer specific Metrics Keys.py", line 33, in <module>
    remove()
  File "Remove Layer specific Metrics Keys.py", line 20, in remove
    Key = FilterLayerKey(layer.leftMetricsKey())
TypeError: 'NoneType' object is not callable
End

[schriftgestalt]

Fixed it. Thanks