Getting error while importing orders from wordpress to shopify

I have recently purchased W2S-woocommerce to shopify plugin and while importing orders from wordpress to shopify I am getting error. Because of the error the processing of importing data is getting slow. I am attaching screensshot and error below please check and fix the issue.

{“errors”:”Exceeded order API rate limit, please try again in a minute. Upgrade to a paid account to remove this limit.”} .