[Claim Rollback Request] Crash with RF tools Dragon Spawner

[xXSantyXx]

Your Name:  xXSantyXx
Coordiantes:  x=470 y=81 z=2784
Time/Date (Post a time/date when everything was fine)(day/month/year):  06/04/2019 : 3am WEST.
Description of Issue: I set up an RFTOOLS spawner with an ender dragon, using a ritual of containment from blood magic, and i mechanical user with an unbreakable shuriken to kill it, using 64 ultimate speed upgrades. The crash happened when i tried to remove the speed upgrades from the mechanical user, i dont think that was an issue tho since i have used them on another machines without any problem.
Screenshots (Optional): 

[geri33]

T/C