Error: The URL cannot be retrieved.

requests /han3/7/6/9/0/0/0/https:/cityofkozani.gov.gr/web/hamzziiii/home?p_p_auth=xp2iwnS2&p_p_id=49&p_p_lifecycle=1&p_p_state=normal&p_p_mode=view&_49_struts_action=/my_sit at [26/Sep/2021:15:03:10 +0800].
Reason: No authority for http://https:0/cityofkozani.gov.gr/web/hamzziiii/home?p_p_auth=xp2iwnS2&p_p_id=49&p_p_lifecycle=1&p_p_state=normal&p_p_mode=view&_49_struts_action=/my_sit