phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a7b7a9e04da35bc404f385a48593c3a6' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('a7b7a9e04da35bc404f385a48593c3a6', -1, 1771053329, 1771053329, 'd849d87b', -9, 0)

Line : 180
File : /www/includes/sessions.php