Push Leaf Blower Have A Question About My Backpack Leaf Blower?

Have a question about my backpack leaf blower? - push leaf blower

Ok, so I just bought a leaf blower, backpack a guy in the document. We went to check and when it all started without any problems, and as we have it back, trying to get some grass and what we have done just that to let it warm up to start and then tried to run it worked then pushed He is released the trigger and cut. After that, I still use the same one knows what the possible problem could be someone, please?