It's not something I can fix, it's a bug in the game itself, just wait for 0.18.15.
You can access the same GUI by just clicking an inserter to open the standard inserter GUI, it just won't be in the middle of the screen (This version doesn't crash)
If you want to stop the crash, delete line 1237 from control.lua (unzip the mod first, you can leave it unzipped too) which should read "player.opened = gui", if you do this, the GUI will still open when you press SHIFT/CTRL + E, but it will lose some functionallity (won't close when you open another GUI, press E or ESC, and opening it won't close other GUIs)
If that seems too complicated, or feels like too much work, uninstalling the mod, then reinstalling it when the game updates to 0.18.15 also works.