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 ('a75cc031816cf6ffb36abb2d9fd0c59f', -1, 1737659844, 1737659844, '039353b5', 5, 0, 0)

Line : 187
File : sessions.php