phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'sessions.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 ('f58a626326980d2a1e74c8d051db4d7f', -1, 1718309633, 1718309633, 'ac47df4a', -7, 0, 0)

Line : 189
File : sessions.php