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 ('23f5f28b17846dbaa6395d40188da3c4', -1, 1717101521, 1717101521, '12bf5ef9', 3, 0, 0)

Line : 187
File : sessions.php