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 ('9bdd0f2411ea6c1145d32a8c08c8dbac', -1, 1715005697, 1715005697, '1276e345', -11, 0, 0)

Line : 189
File : sessions.php