Fatal Error with little description

[LeanderGlanda]

Hi there, I recently installed your plugin as I thought it would be nice to be able to calculate/view properties of my tracks on the PCB I'm currently working on. Today I wanted to try parasitics, but didn't get it to work. I have attached an image below that shows the error.

Some additional information:

• My laptop runs Windows 11
• I use KiCAD 7.0.10 (previously 7.0.5, I updated but that didn't make the plugin work)
• I installed the latest version of this plugin inside the plugin manager of KiCAD.
• My PCB Stackup in KiCAD is custom so it fits the one I use from JLCPCB.
• My PCB design is unfinished and not all nets are connected.

Don't stress with finding a solution. I just thought I could report the error and help you out with development by reporting the bug. If you tell me what to do I can help you debug for a solution or provide further information.