The following signatures couldn't be verified because the public key is not available: NO_PUBKEY B0076E490B71616B
Reading package lists... Done
W: GPG error:
https://grimler.se/termux-packages-24 stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY B0076E490B71616B
E: The repository '
https://grimler.se/termux-packages-24 stable InRelease' is not signed.
N: Metadata integrity can't be verified, repository is disabled now.
N: Possible cause: repository is under maintenance or down (wrong sources.list URL?).
W: GPG error:
https://grimler.se/science-packages-24 science InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY B0076E490B71616B
E: The repository '
https://grimler.se/science-packages-24 science InRelease' is not signed.
N: Metadata integrity can't be verified, repository is disabled now.
N: Possible cause: repository is under maintenance or down (wrong sources.list URL?).