PPF-1210: add try except for build_widgets

[alvin-r]

Added a try except in the build_widgets loop to skip faulty widgets.

All Submissions:

• Have you followed the guidelines in the developer guide?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

New Feature Submissions:

1. Does your submission pass tests?
2. Have you lint your code locally prior to submission?

Changes to Core Features:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your core changes, as applicable?
• Have you successfully ran tests with your changes locally?

[chinapandaman]

Closing due to inactivity.