It will not start

Windows says it protected your PC

The installer is not signed, so Windows does not recognize it. Choose More info, then Run anyway, or use the portable version.

apt cannot find the package

The leading ./ is missing. Without it, apt looks for a package by that name in its own sources rather than installing the file in front of it:

sudo apt install ./tineplayer_*.deb

The package will not install on Linux

You may have the wrong architecture. Ask your machine which it wants:

dpkg --print-architecture

amd64 is most desktops and laptops; arm64 is a Raspberry Pi. See Installing TinePlayer.