Hello,

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.

4. Go to Dashboard -> Updates and click on Check Again.

5. Try to update the theme via Appearance -> Themes or via Dashboard -> Updates.

Otherwise, if the issue still exists then share the WP admin login details of your site so I will check ado it for you.

Best Regards.