Screenshot: https://snag.gy/CZL9Fs.jpg
How to replicate: Place a "Scanning Radar" from the scanning radar mod. Don't know why this specific item triggers an issue with your mod...I wasn't placing it on a platform nor had I used any platforms on the map. For verification purposes, I created a brand new map and tried to place the same item and it triggered the error still. Hope this helps! :)

Thanks for the well documented bug report! I'll definitely be able to fix this, thank you.

Alright, it's fixed.
It still crashes if you break a platform with a scanning radar on top, but that's a bit of a fringe case so I'm not too worried about it.

Thank you! I make it a point to report bugs to all mod developers as best as I can. I appreciate your submission to this awesome modding community for this amazing game :) . Factorio4Life xP

Thanks :). Factorio is executed so well. It's great to hear my hobby being useful.