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 ('b7c814ae5ae1b3a559fe1a745958f04a', -1, 1714397435, 1714397435, '0311b515', -11, 0)

Line : 158
File : sessions.php