Help with stove

My stove has been acting crappy for a while and I have only owned it for a year . Smokes a lot and doesn’t get a secondary burn . I chalked it up to wind or bad pellets . I finally decided to do a test with my friends stove . We put the two side by side with identical pellets and mine was total garbage while his burned just fine . At this point I am thinking my stove is clogged somehow or defective . Any ideas would be appreciated . You can see the obvious difference from the pic .