error pgp??

[pedro vezzosi]

I use debian stable with backports to try to do apt-get update gives me
this error


W: Error de GPG: http://mozilla.debian.net wheezy-backports Release: Las
siguientes firms fueron inválidas: BADSIG 85A3D26506C4AE2A Debian Mozilla
team APT archive <pkg-mozilla-maintainers at lists.alioth.debian.org>


until yesterday everything worked well today not the certificate works
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