19.3.0 Invalid Archive Errors

https://docs.anaconda.com/anaconda/user-guide/faq/#installing-anaconda

" We recommend installing Anaconda or Miniconda into a directory that contains only 7-bit ASCII characters and no spaces, such as C:\anaconda ."

Uninstall Anaconda (from your home directory) and reinstall,
Either select “install for all users” when installing again, or
If installing for “Just you”, manually change the installation directory from C:\Users\Keçeci\anaconda to C:\anaconda