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 ('7f7418f05e37019843c221c62463fb6d', -1, 1762711588, 1762711588, 'd849d858', 2, 0, 0)

Line : 187
File : sessions.php