Error in KiCad 8

[boromyr]

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Exception on python action plugin code
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Traceback (most recent call last):

  File "D:\Users/PC/Documents/KiCad/8.0/scripting\plugins\com_github_jsreynaud_kicad-action-scripts\ViaStitching\FillAreaAction.py", line 88, in Run
    fill.Run()

  File "D:\Users/PC/Documents/KiCad/8.0/scripting\plugins\com_github_jsreynaud_kicad-action-scripts\ViaStitching\FillArea.py", line 590, in Run
    board_edge.Deflate(int(b_clearance), int(12),  SHAPE_POLY_SET.ROUND_ALL_CORNERS)
                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

AttributeError: type object 'SHAPE_POLY_SET' has no attribute 'ROUND_ALL_CORNERS'

After starting the generation of the 'vias' I get this error message.