phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO forum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('4025cc1b93684bc9431b26c9492d8d72', -1, 1717104831, 1717104831, '12bf5ef9', 2, 0, 0)

Line : 187
File : sessions.php