I can't use the mask in AnimAide

[MeguiTaA12]

Error
This error happens when I click on the mask button in the addon itself

Python: Traceback (most recent call last):
File "C:\Users\megag\AppData\Roaming\Blender Foundation\Blender\4.0\scripts\addons\animaide-master\anim_offset\ops.py", line 402, in modal
support.set_blend_values(context)
File "C:\Users\megag\AppData\Roaming\Blender Foundation\Blender\4.0\scripts\addons\animaide-master\anim_offset\support.py", line 201, in set_blend_values
keys[1].co.x = left_margin
IndexError: bpy_prop_collection[index]: index 1 out of range, size 1

I did another test trying to use the addon and discovered that if I try to use the addon in the panel, it simply gives a different error

Python: Traceback (most recent call last):
File "C:\Users\megag\AppData\Roaming\Blender Foundation\Blender\4.0\scripts\addons\animaide-1_0_38_39\anim_offset\ops.py", line 277, in modal
frame = int(co[0])
ValueError: cannot convert float NaN to integer

[Sobollion]

Answer is here