Hi there, Through our investigations, we have identified that some players are receiving BUFFALO errors due to invalid entries presented within the friends list. We are seeking to address this issue with a future Hotfix. Not all players that are encoutnering BUFFALO errors are impacted by this issue. If you are encountering this error code, we recommend following the steps within the [url=https://www.bungie.net/en/Support/Troubleshoot?oid=12915]Network Troubleshooting Guide[/url] and our [url=https://www.bungie.net/en/Help/Article/11912]BUFFALO[/url] error code article.