error 500 on xampp using htacces (Password)

Hi I am getting error 500 on Apache webserver using xampp. The error wasnt there until i used a .htaccess, .htpasswd file. I searched and i couldnt find a syntax error. I have only 1 image and the index file I want to protect. Here are the syntaxes: .htaccess

AuthType Basic
AuthName "Prosím přihlašte se.";
AuthUserFile C:\xampp\htdocs\Zprávy 1.E\.htpasswd
require valid-user

.htpasswd

 zak:$apr1$t8hZiqXE$0qdoQ/876dOqysUmww2NM/