Plugin Error – WooCommerce/EasyShip

I’m making a webstore using WooCommerce and EasyShip for live rates.

Now that I have EasyShip installed, whenever something is added to my cart, I get this error: Warning: A non-numeric value encountered in /home/aprilw38/public_html/wp-content/plugins/easyship-woocommerce-shipping-rates/includes/easyship-shipping.php on line 362
The error goes away when the page is refreshed.

I’ve already contacted EasyShip’s support and they’re looking into it. I’ve also posted on WooCommerce’s forum, but they don’t seem to get many responses and their subreddit doesn’t seem super active either. So sorry if this isn’t the right/best place to post but I’m not sure where to go for answers.

Alternatively, if anybody has recommendations for other plugins with live shipping rates, I don’t have to use EasyShip. I just went with them because they are free. I need live rates for USPS, UPS & FedEx. I know there are a lot of paid options, but if there are other free options that would be great. I’m open to paid options too.

Thanks!