This plugin looks great and ideal for what I need. Unfortunately I can't get it to work and keep getting the following error message.

I'm running SU8, and have purged the components, saved the model and tried running VisMap2 again, and get the same error. This occurs on both model I'm working on with ~25 layers and scenes, and a newly created model with 3 layers and 4 scenes.

Any suggestions gratefully received.