[help] cant boot recovery anymore?!

So i rooted within 4.4.4, flashed a pre-rooted 5.0.1 stock rom
everything was fine did a backup in recovery aswel (XZRecovery)

But now i wanna go in recovery but it just doesnt boot;
not with power+volume down and not with a app like NDR Utils.

Please XDA,

I need your help.. :(

- bram