The error is because of the flow or what?

[FIXERMAN]

python3 web-brutator.py --target standardform --url https://victim.com/ -U username.txt -P pass.txt -s -e 25 -t 10 --timeout 50

Network error: HTTPSConnectionPool(host='victim.com', port=443): Max retries exceeded with url: / (Caused by ConnectTimeoutError(<urllib3.connection.VerifiedHTTPSConnection object at 0x7f077c6cbfa0>, 'Connection to *****.com timed out. (connect timeout=60)'))

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the volume of the dictionary if more than 50mb then there is such an error and freezes