phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c9a86c2f3bf02ff018fc64e69d09116d' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('c9a86c2f3bf02ff018fc64e69d09116d', -1, 1765976445, 1765976445, 'd849d892', -9, 0)

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