Hi and thanks for this report
The first error appears to be caused by/during WaterTurret-revived, nonetheless I implemented a check to prevent a crash on that specific line.
The second error should be solved as well.
My suspicion is that another mod introduces an invalid technology. I tried to catch this as good as possible, please let me know if you run into other errors.
Also, are you planning on including a feature that allows you to add, remove, or change technical reservations by dragging and dropping them?
Unfortunately the modding GUI does not support drag and drop, it has been requested by many modders but it has not been implemented yet. Therefore the only control I can offer is with the arrows.