@leocg
The same problem with key for
OS: LMDE 6 (faye) x86_64
Kernel: 6.1.0-37-amd64
pub rsa4096 2023-05-29 [SC] [expired: 2025-05-28]
9701 D4A1 B4D9 2E26 1C8C 66FE 24A1 004B 1F11 DCC9
uid [ expired] Opera Software Archive Automatic Signing Key 2023 packager@opera.com
/etc/apt/trusted.gpg.d/A7236886F3CCCAAD148A27F80E98404D386FA1D9.gpg
Err:8 https://deb.opera.com/opera-stable stable InRelease
The following signatures were invalid: EXPKEYSIG 24A1004B1F11DCC9 Opera Software Archive Automatic Signing Key 2023 packager@opera.com
Reading package lists... Done
W: GPG error: https://deb.opera.com/opera-stable stable InRelease: The following signatures were invalid: EXPKEYSIG 24A1004B1F11DCC9 Opera Software Archive Automatic Signing Key 2023 packager@opera.com
E: The repository 'https://deb.opera.com/opera-stable stable InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.