1. Error: SelluSeller App uninstalled from Shopify Store.
Reason: Your SelluSeller App might have been uninstalled, or may not be properly installed from your Shopify Store.
2. Error: Failed. Response code = 401. Response message = Unauthorized
Reason: Your SelluSeller App may have been uninstalled/deleted from your Shopify store, or your Shopify store login credentials have some errors. Alternatively, you may not have sufficient user access rights.
You just need to click on the 'here' to re-install the SelluSeller app and resolve the error immediately from the same page. You can also follow the below-mentioned steps to resolve the error,
Step 1: Open the Shopify App Store and search for 'SelluSeller' application
Step 2: Click on the 'Add app' button and enter the Shopify Store URL to which you wish to connect the SelluSeller App.
Step 3: Click on the 'Install app' button that will redirect you to the SelluSeller.
Step 4: As you must have already signed up on SelluSeller, simply proceed & login using your ID and password.
Step 5: Once logged in to SelluSeller it will redirect you to the same page where you left earlier to complete the further process.
3. Error: Failed. Response code = 429. Response message = Too Many Requests
Reason: You might be receiving this error because there are too many requests at the same time.
Please wait for some time and try reloading the page to resolve the error.