phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '3c9abb0336fe9d84b792c366f91ee1fc' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('3c9abb0336fe9d84b792c366f91ee1fc', -1, 1752447015, 1752447015, 'd849d898', 3, 0, 0)

Line : 187
File : sessions.php