Support probably linked you to this page in order to collect an Activity Log so we can troubleshoot an issue with a service. Please follow the below instructions exactly.
Fully close the the affected service or app. If possible, clear any local state.
Additionally, fully close all non-relevant apps on the same device. This helps isolate the activity we're looking for.
Start the Activity Log for the Device that is configured on your phone, TV box, browser or computer that you're using to reproduce the issue.
Start the app or navigate to the website in the Incognito/Private tab, login and reproduce the problem. As soon as the issue is reproduced/error occurs, stop the Activity log immediately.
Copy the Activity log using the button at the top right of the Activity log screen (just above the search box) and provide it to support. Additionally, take a screenshot of the error and send it along with the activity log, and provide the exact device/platform you're using to reproduce the issue.