phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1418a12563d6ceeb68b2205b4b4b943b' 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 ('1418a12563d6ceeb68b2205b4b4b943b', -1, 1768297711, 1768297711, 'd849d81c', -4, 0, 0)

Line : 187
File : sessions.php