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 ('a2249f86dd2c5e0e49de3da89536ea25', -1, 1714389644, 1714389644, '03114f3c', 23, 0)

Line : 158
File : sessions.php