Thanks for reporting.
Bungie is fully aware of this bug and they are investigating. Stay tuned to Bungie's official channels for the latest news.
[quote]We are investigating an issue where some players are crashing when they go to the Commendations page in the Journeys tab. It's recommended to not view this screen until a fix can be deployed.
https://twitter.com/BungieHelp/status/1630729918337421313[/quote]