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 ('fe3f59f8dc1f84a84f2e3d5050da8c4d', -1, 1714423368, 1714423368, '038fda92', 18, 0)

Line : 158
File : sessions.php