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 ('a0f7b8f27d0a6b61e1f33512a5edcd01', -1, 1737483795, 1737483795, '12776d3c', -9, 0, 0)

Line : 187
File : sessions.php