Durafly Autogyro G2 V2 Rd5

Follow the saga that is my ongoing struggle to manage a successful flight with this unusual Aircraft , Big thanks to so many contributors with some really solid advice , I really appreciate you taking so time to help me .
What I have learned so far is that this craft requires very gentle handling, particularly the stick inputs of the ailerons.Also it may require a bit of additional weight upfront to help it fly better. As for my experience so far I am still very unsure about why i am having little success, in this video clip the autogyro just took a nose dive for no apparent reason, my best guess is perhaps a loss of radio transmission, so i will replace this before my next attempt. As ever all advice and guidance is appreciated