phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('2d629a09bd5ee1945b6ab13dd0ba0118', -1, 1715938712, 1715938712, '12e042c4', -4, 0)

Line : 158
File : sessions.php