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 ('9aa8660671283b0d9b1f100991379edd', -1, 1717101871, 1717101871, '12bf5ef9', -9, 0, 0)

Line : 187
File : sessions.php