Error: The URL cannot be retrieved.

requests /han3/7/6/9/0/0/0/mumbai.aevt.org/affiliaction-registration?nfstatus=401?Return=https://mumbai.aevt.org/affiliaction-registration?nfstatus=401&sso=0&utm_source= at [21/Mar/2023:15:57:26 +0800].
Reason: No authority for http://mumbai.aevt.org/affiliaction-registration?nfstatus=401?Return=https://mumbai.aevt.org/affiliaction-registration?nfstatus=401&sso=0&utm_source=