Was your fermentation lock firmly seated in the aperture. Many beginners get that "not quite right. As Ray says check the SG. If is it low then ur lock was at fault. If it is high then prob your yeast --- but that is VERY rare!!!!!!!!!!!!!!!!!!!!! -- it is normally going to be something you did wrong.
In the last resort read the instructions CAREFULLY and then read them again.You will realise that 10's of thousands of wine kits have been, and are, made successfully! You don't mention the time frame in which you are working -- is it minutes, hours or days?
The usual reason in a rare failure is in your hands. Read -- I don't mean just glance -- read and follow and have the piece of paper with instructions to hand -- or pinned up at eye level. And then read them again. In 30 + years of winemaking I have NEVER had an occasion when fermentation has not gone well! --- other things have gone wrong but my wines have always got under way!