Input Shaper Calibrate doesn't work on Ender 3 V3 CoreXZ anymore

[Atomique13]

I was using the "improved shapers calibrations" from Guilouz's helper script, but recently I installed Guppyscreen and the script told me that I need to uninstall that cause Guppyscreen already has that. After removing that and installing Guppyscreen, Input Shaper Calibrate doesn't work anymore. Tried doing it both from display and web interface, same error. :(

I am running nightly-07409cb031bbbfc57cd7817ba295e5385e3d5565 .