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 ('e2cd24177331d0deb1477f748eda2a08', -1, 1715095786, 1715095786, '030e46cb', 2, 0, 0)

Line : 189
File : sessions.php