Hello,
First of all thanks for choosing our Theme, we are glad to be you in the WoodMart WordPress family :).
You can update the WooCommerce and we shall provide the updated templates in the nearest update. Meanwhile, the site would work properly on the current templates.
Please make sure that you are using the latest version of the theme. Then update the WooCommerce plugin.
If you still get the error then provide with some video of what kind of errors you are facing with the admin panel login details of the website to check it myself and help you out accordingly.
Best Regards.