[BUG] DuGr crashes after Udate (old DuGR_settings.json causes the crash)

[schwarzSTE]

Before submitting:

• Please try to reproduce the bug in "Dev & Debug mode". You can activate this mode in the settings panel (wrench icon at the bottom of the panel), and click on the "Normal mode" button to switch to "Dev & Debug", then click "Apply", close and re-open the panel.
  -> not possible because panel crashes on load before debug mode can be enabled

• Make sure this bug hasn't already been reported by making a search in the issues.

Describe the bug
After Updating from DuGr 4.0.2 panel crashes on load with the following message: "Unable to execute script at line 10676. null is not an object"

To Reproduce
Steps to reproduce the behavior:
After checking if the bug occurred on a different Installation of AE (which it didn't) I found that removing the DuGR_settings.json file will ensure normal startup of DuGr.
DuGR_settings.zip

Expected behavior
DuGr Panel loads

Screenshots and other details

"Unable to execute script at line 10676. null is not an object"

The settings file generated by 4.0.3 looks quite different from the one that was used by 4.0.2 (I'm using DuGr for a while now, so I'm not sure which version generated the settings file initially.

Environment (please complete the following information):

• DuGR version: 4.0.3
• After Effects version: 22.2.1
• OS version: Windows 10

Additional context