fix regex

html/.htaccess

@@ -2,7 +2,7 @@ RewriteEngine On
 RewriteBase /
 RewriteRule ^([a-zA-Z]{1,})-([a-z]{2})$  index\.php?arena=$1&lang=$2 [L]
 RewriteRule ^([a-zA-Z]{1,})$  index\.php?arena=$1 [L]
-RewriteRule ^-([a-z]{2})$  index\.php?lang=$1 [L]
+RewriteRule ^/-([a-z]{2})$  index\.php?lang=$1 [L]
 RewriteCond %{REQUEST_FILENAME} !-f
 RewriteCond %{REQUEST_FILENAME} !-d
-RewriteRule ^index.php$  index.php/ [L]
+RewriteRule ^index.php$  index.php/ [L]