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 ('6692ebfc3ee64d346469bfb06e438678', -1, 1715205174, 1715205174, '031677fb', -8, 0, 0)

Line : 189
File : sessions.php