phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9ff421800d91fd25bbe2535bf3fa6d4f' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('9ff421800d91fd25bbe2535bf3fa6d4f', -1, 1715895561, 1715895561, '03932c79', -6, 0, 0)

Line : 187
File : sessions.php