Error on load of save file: https://imgur.com/a/gMXB0zs

I had a good start on a base without problems. I had a few dozen red and blue containers plus one yellow container deployed. All drones assigned thru yellow a central drone storage.

Only change since save was an update to a mini-loader mod. Which I use it to connect to/from drone storage containers. (https://mods.factorio.com/mod/loader_mini_1x1)

Let me know if you need me do anything.

You don't need to do anything — I already know about the issue. It was caused by the mod using symbols from the old v2.0 defines table that were removed in v2.1. A new version has been released; please update and try again.

Working again. Thanks and thanks for updating the mod for 2.1. It is one of my favorites.