Fixed 'An internal error occurred!' message repeats when entering specific save file

I was landing a shielded sv after rocketing some drone base turrets and drones. while trying to land the "an internal error has occurred! please insert a short description in the prepared email - thank you!" message came up. after clicking continue the message continues to appear and I can do nothing but quit the game. other save files are perfectly playable. after entering the save file multiple times I also noticed that strange things are happening, such as the radiation and temperature being wildly off, or occasionally appearing under the ground.

If there is a way to fix this that would be wonderful as I have made a fair bit of progress in this save game and would not like to lose it.

Edit: I managed to get the console open and it is just repeating this message:

Exception on playfield 'Roiistel':
System.NullReferenceException: Object reference not set to an instance of an object


the log, and save files are attached.

 

I managed to fix the problem by turning ai off through the console, but the problem comes right back after turning ai back on. the problem only returns if I turn ai on while on the same playfield, however.