Hi mirza.ahtsham786,
Thanks for reaching to us.
Try to do the following to update the theme:
1. Go to Dashboard -> WoodMart -> Theme License and deactivate the theme.
2. Go to Dashboard -> Updates and click on Check Again.
3. Activate the theme with your purchase code again. If you can’t activate it, remove all your old activations in your account https://xtemos.com/my-account/
4. Go to Dashboard -> Updates and click on Check Again.
5. Try to update the theme via Appearance -> Themes or via Dashboard -> Updates.
Regards,