phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('5f2046a5e46aa9de2aa2c8615e6772cf', -1, 1715322896, 1715322896, '03114f3b', 7, 0, 0)

Line : 189
File : sessions.php