no public key on debian 11 unable to apt update

I've tried all methods published in older questions, such as adding from ubuntu.keyserver, using gpg, from hkp://pool.sks-keyservers.net:80 etc, any ideas ¿? gpg: gpg --recv-keys 0E61D3BBAAEE37FE gpg: recepción del servidor de claves fallida: No data ubuntu keyserver: Executing: /tmp/apt-key-gpghome.zPtWaE6tzD/gpg.1.sh --keyserver keyserver.ubuntu.com --recv-keys 0E61D3BBAAEE37FE gpg: recepción del servidor de claves fallida: No data pool.sks-keyserver: sudo apt-key adv --keyserver hkp://pool.sks-keyservers.net:80 --recv-keys 0E61D3BBAAEE37FE Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)). Executing: /tmp/apt-key-gpghome.qLLaSgFMSM/gpg.1.sh --keyserver hkp://pool.sks-keyservers.net:80 --recv-keys 0E61D3BBAAEE37FE gpg: recepción del servidor de claves fallida: Server indicated a failure