phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('016af228040d524da560d8f64238822f', -1, 1737559079, 1737559079, '0390fb6a', 29, 0, 0)

Line : 187
File : sessions.php