To trace and address the issue:

Settings Cog > Your Login > Feature Flags > debug enabled

Take note of the browser ID

Navigate to Guests and search for bid:{enter browser id here}

View the various events on the timeline, starting with the most recent, view details

With debug enabled, a cog will show after the title such as "Events for Session"

View as JSON

Search for the GUID that was described in the "flow" attribute

Within the JSON object you will see the name and type of the root cause, such as a failing web experiment

Fix the experiment or set it to pause or finish

To trace and address the issue:

Settings Cog > Your Login > Feature Flags > debug enabled

Take note of the browser ID

Navigate to Guests and search for bid:{enter browser id here}

View the various events on the timeline, starting with the most recent, view details

With debug enabled, a cog will show after the title such as "Events for Session"

View as JSON

Search for the GUID that was described in the "flow" attribute

Within the JSON object you will see the name and type of the root cause, such as a failing web experiment

Fix the experiment or set it to pause or finish