phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f729c131c6b86466fb8e0804f8a01fe8' 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 ('f729c131c6b86466fb8e0804f8a01fe8', -1, 1757312843, 1757312843, 'd849d865', 2, 0, 0)

Line : 187
File : sessions.php