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 ('0c986941a257a98406e1ac0d1ea8a273', -1, 1715215766, 1715215766, '0389b534', -7, 0, 0)

Line : 189
File : sessions.php