The RSS block generates the following errors when added to the My Moodle page by a regular site user (guest role, but occurs for any non-administrator role)

Error: Invalid context creation request for level "50", instance "5".

Error: Invalid context creation request for level "50", instance "5".

Error: Invalid context creation request for level "50", instance "5".

Error: Invalid context creation request for level "50", instance "5".

The error does not occur when the user is a has the role of a Site Administrator.

Steps to reproduce:
1. Set debugging to NORMAL
2. Log in with a user who is not a site admin (using the default guest role)
3. Go to the My Moodle page by adding the /my to the end of the URL
4. Turn Editing on
5. Add an RSS block

The errors will appear above the block
See the attached screenshot