I am new to this. Fresh mint install today & cant get updates to install plus my internet connection is spotty & only works when i restart.
Here are the error codes:
W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/p/python3.8/libpython3.8_3.8.10-0ubuntu1~20.04_amd64.deb
404 Not Found [IP: 91.189.91.38 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/p/python3.8/libpython3.8-minimal_3.8.10-0ubuntu1~20.04_amd64.deb
404 Not Found [IP: 91.189.91.38 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/p/python3.8/libpython3.8-stdlib_3.8.10-0ubuntu1~20.04_amd64.deb
404 Not Found [IP: 91.189.91.38 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/p/python3.8/python3.8-minimal_3.8.10-0ubuntu1~20.04_amd64.deb
404 Not Found [IP: 91.189.91.38 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/p/python3.8/python3.8_3.8.10-0ubuntu1~20.04_amd64.deb
404 Not Found [IP: 91.189.91.38 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/l/linux-meta/linux-generic_5.4.0.77.80_amd64.deb
404 Not Found [IP: 91.189.91.38 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/l/linux-meta/linux-image-generic_5.4.0.77.80_amd64.deb
404 Not Found [IP: 91.189.91.38 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/l/linux-meta/linux-headers-generic_5.4.0.77.80_amd64.deb
404 Not Found [IP: 91.189.91.38 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/l/linux/linux-libc-dev_5.4.0-77.86_amd64.deb
404 Not Found [IP: 91.189.91.38 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/t/thunderbird/thunderbird_78.11.0+build1-0ubuntu0.20.04.2_amd64.deb
404 Not Found [IP: 91.189.91.38 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/t/thunderbird/thunderbird-gnome-support_78.11.0+build1-0ubuntu0.20.04.2_amd64.deb
404 Not Found [IP: 91.189.91.38 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/universe/t/thunderbird/xul-ext-lightning_78.11.0+build1-0ubuntu0.20.04.2_amd64.deb
404 Not Found [IP: 91.189.91.38 80]