When ever I stop the chest from doing anything or something simualar and after that I upgrade the assembly machine to a higher tier. Well it just gives this error... http://www.gerbenveenhof.nl/Download/ErrorFactorio.jpg Soo yeah that is a bug I got :$ But I love your mod and the outcome :D please ...

When ever I stop the chest from doing anything or something simualar and after that I upgrade the assembly machine to a higher tier. Well it just gives this error... http://www.gerbenveenhof.nl/Download/ErrorFactorio.jpg Soo yeah that is a bug I got :$ But I love your mod and the outcome :D please f...