Undecimus: can't use cycript

when i use cycript -p xxx, it’s showing

 [1314] DarwinInjector.cpp[246]: _krncall(mach_vm_read_overwrite) =10000003
*** _assert(status == 0):../Inject.cpp(143):InjectLibrary

all of the application are throw this error when i use cycript

I think that it about patch kernel, and my phone is iphone se,os is 12.1

Best wishes