In some cases, during the installation(import) of the widget into the Muse library, the installation may be interrupted by a message about the error:
Solution 1
Make sure you are using the latest version of Adobe Muse. Open the Creative Cloud app and check for updates to Muse.
Solution 2
Contact me via support form and I send you widget compiled in your version of Muse.
Solution 3
If you do not have the time or for some other reason you can not use solutions 1 or 2 – install the previous version of Muse.