Updated the Dymo JavaScript SDK from version 2.0 to version 3.0. Please see the Dymo blog
Please take the following two steps:
If you have already installed the module. The only file you have to update is:
/admin/view/javascript/wddymo/dymo.label.framework.min.js
Upload all files in the upload folder to your OpenCart installation. Please see the README.
You might have to update the DLS (Dymo Label Software). Please see the download page at Dymo If you updated the DLS, please restart your browser, or restart your computer completely.