Error: Could not fetch URL - HTTPSConnectionPool(host='web.archive.org', port=443): Max retries exceeded with url: /web/20240526042116/https://deepblue.lib.umich.edu/bitstream/2027.42/101767/1/bmc2981.pdf (Caused by NewConnectionError("HTTPSConnection(host='web.archive.org', port=443): Failed to establish a new connection: [Errno 111] Connection refused"))