GPG key invalid on repo | mi-fastboot doesn't install

[coffee100percnt]

apt output:

Hit:2 https://packages-cf.termux.dev/apt/termux-main stable InRelease
Err:1 https://rohitverma882.github.io termux InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 98B41BFB7ED7F825
Reading package lists... Done
W: GPG error: https://rohitverma882.github.io termux InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 98B41BFB7ED7F825
E: The repository 'https://rohitverma882.github.io termux InRelease' is not signed.
N: Metadata integrity can't be verified, repository is disabled now.
N: Possible causes: unstable or tampered Internet connection, wrong sources.list, outdated keyring or host is down currently.
N: Please note that all hosting problems or other serious issues we announce on our social media pages.
N: Use termux-change-repo for switching to a mirror.
[...]```

[RohitVerma882]

Clear termux app data and try again

[coffee100percnt]

didn't work

[RohitVerma882]

Download .deb package aarch64 or arm and install mi-fastboot manually using command.

dpkg -i <deb-pkg-file>

[coffee100percnt]

it worked, thanks