System Information
Operating system: Windows-10-10.0.19044-SP0 64 Bits
Graphics card: GeForce GTX 860M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 382.66

Blender Version
Broken: version: 3.0.1, branch: master, commit date: 2022-01-25 17:19, hash: rBdc2d18018171
Worked: (newest version of Blender that worked as expected)

Addon Information
Name: A.N.T.Landscape (0, 1, 8)
Author: Jimmy Hazevoet

Short description of error

Python: Traceback (most recent call last):

File "C:\Program Files\Blender Foundation\Blender 3.0\3.0\scripts\addons\ant_landscape\ant_functions.py", line 1062, in execute
  ob.vertex_groups.active = vg

RuntimeError: Error: VertexGroup 'capacity' not found in object 'Landscape'

location: <unknown location>:-1

Exact steps for others to reproduce the error
Create landscape using ANT
"N" to call up toolbar
Navigate to Landscape Eroder
Push button and error popup appears