Error: The URL cannot be retrieved.

requests /han3/7/6/9/0/0/0/mumbai.aevt.org/?utm_campaign?Return=https://mumbai.aevt.org/?utm_campaign at [30/Mar/2023:12:03:35 +0800].
Reason: No authority for http://mumbai.aevt.org/?utm_campaign?Return=https://mumbai.aevt.org/?utm_campaign