phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '7373afb097d5a72aba52b8cc97a51d2e' 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 ('7373afb097d5a72aba52b8cc97a51d2e', -1, 1778802004, 1778802004, 'd849d93d', -4, 0, 0)

Line : 187
File : sessions.php