Leaking LPRs can be a few things.
If it's an adjustable one then it could be turned up to high. Should be just high enough that it will c0ck. (can't someone take male chickens off the swear words list)
Your HPR could be turned up too high.
Although most will blow the hose off first if the pressures are too high.
What type is it and where is it leaking from?