evowise signatur failed

[bigbrother]

$ apt update
Ign:1 http://mirrors.evowise.com/linuxmint/packages tara InRelease
Hit:2 http://ubuntu.ethz.ch/ubuntu bionic InRelease                                                                                                 
Hit:3 http://ubuntu.ethz.ch/ubuntu bionic-updates InRelease                                                                                               
Get:4 http://mirrors.evowise.com/linuxmint/packages tara Release [24.1 kB]                                                                               
Hit:5 http://archive.canonical.com/ubuntu bionic InRelease                                                                                               
Hit:6 http://ubuntu.ethz.ch/ubuntu bionic-backports InRelease                                                                                             
Get:7 http://mirrors.evowise.com/linuxmint/packages tara Release.gpg [819 B]                                                                             
Hit:8 http://linux.teamviewer.com/deb stable InRelease                                                                                                   
Get:9 http://security.ubuntu.com/ubuntu bionic-security InRelease [83.2 kB]                   
Ign:10 http://dl.google.com/linux/chrome/deb stable InRelease                     
Hit:11 http://dl.google.com/linux/chrome/deb stable Release                       
Err:7 http://mirrors.evowise.com/linuxmint/packages tara Release.gpg
  The following signatures were invalid: BADSIG A6616109451BBBF2 Linux Mint Repository Signing Key <root@linuxmint.com>
Fetched 108 kB in 2s (64.0 kB/s)
Reading package lists... Done
Building dependency tree       
Reading state information... Done
All packages are up to date.
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://mirrors.evowise.com/linuxmint/packages tara Release: The following signatures were invalid: BADSIG A6616109451BBBF2 Linux Mint Repository Signing Key <root@linuxmint.com>
W: Failed to fetch http://mirrors.evowise.com/linuxmint/packages/dists/tara/Release.gpg  The following signatures were invalid: BADSIG A6616109451BBBF2 Linux Mint Repository Signing Key <root@linuxmint.com>
W: Some index files failed to download. They have been ignored, or old ones used instead.

Hat das jemand anderst auch?

LG bb