Minor update:
There was a recent update of Entware packages, and Python3 has been updated to 3.13.9
As a result, Mylar3 and Watcher3 are no-longer supported. Watcher3 is no-longer developed, and the Mylar3 devs are in no hurry to ensure compatibility with Python 3.13. 
Please uninstall these QPKGs via your App Center.
The Entware update has also broken the git and git-http IPKs. This means any QPKG that pulls git source from a repo will fail.
I’m currently working on a temporary fix and will release it shortly.