phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('3d2213794eb1754aa243c4a2a9dcec0b', -1, 1737623841, 1737623841, '12d97af8', 6, 0, 0)

Line : 187
File : sessions.php