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 ('2c18d459cb2dbe61dcd1c98691dd6abb', -1, 1714441465, 1714441465, '12dd0f0f', -2, 0)

Line : 158
File : sessions.php