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 ('3ae4f11a7f882a5b673baba623f8a1a3', -1, 1713576936, 1713576936, '12e03f57', -10, 0, 0)

Line : 187
File : sessions.php