Error in ProtVista widget for various target profile pages

[prashantuniyal02]

Describe the bug ProtVista widget does not immediately load for various target profile page (BRCA2 profile page, TP53 profile page)

Observed behaviour ProtVista widget does not immediately load for BRCA2 and TP53 profile page. Instead a message is displayed /assets/spinner-374aaf14.svg. However after sometime the widget loads on its own.

To Reproduce Steps to reproduce the behaviour:

1. Go to BRCA2 profile page or TP53 profile page
2. Click on ProtVista widget
3. See error
4. Wait for a few minutes and the widget loads on its own.

Additional context

[prashantuniyal02]

Depends on: #3210