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, session_admin) VALUES ('7d68d88ec677d8609f2452dd56b6d3aa', -1, 1713887392, 1713887392, '0387d5d6', -10, 0, 0)

Line : 187
File : sessions.php