Thank you for your answer. When i tried to remove the old .htaccess file,got an error message about SQL not matching.
This is how i resolve the the problem
I restored from the backupfile a day before the issue and i edit the .htaccess file from
## begin basic auth
AuthName “the protected directory”
AuthType Basic
AuthUserFile “/usr/home/thest3/www/htdocs/wp-admin/.htpasswd”
Require valid-user
## end basic auth
to
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress
That was able to solve my problem
Just to add to the post above, i deleted the .htaccess file and add it again. Now i can even view the website again. I need urgent help please