Author not responding

So i got 6 month support but Author not answers me back so what should i do?

How long ago did you contact them. Was it via the correct route for support (as per the tab above main image on the item page)?

my first message like 3 weeks ago and last one like 3 days ago i think

I’d check item comments and see if they are replying otherwise you can contact envato https://help.market.envato.com/hc/en-us/requests/new

i will try but my purchase have some default issue which must be fixed i think it is not working at mobile properly.