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 ('ee345c42fc0ef5c1f7bcda0c33fcf8a7', -1, 1713918329, 1713918329, '0385a09c', -1, 0, 0)

Line : 187
File : sessions.php