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 ('801f3d44b0bc3d661f4f61b6b33d2a2a', -1, 1714235605, 1714235605, '038595a8', -4, 0)

Line : 158
File : sessions.php