I disabled CloudFlare and also SuperCacher as the hosting recommended me to try (siteground). The same problem occurred (I have re-enabled back). This is my httaccess:
<IfModule mod_expires.c>
ExpiresActive on
ExpiresByType text/css “access plus 14 days”
ExpiresByType text/xml “access plus 0 seconds”
ExpiresByType text/javascript “access plus 14 days”
ExpiresByType application/x-javascript “access plus 14 days”
ExpiresByType image/ico “access plus 14 days”
ExpiresByType image/jpg “access plus 14 days”
ExpiresByType image/jpeg “access plus 14 days”
ExpiresByType image/gif “access plus 14 days”
ExpiresByType image/png “access plus 14 days”
ExpiresByType image/svg+xml “access plus 1 month”
ExpiresByType text/html “access plus 14 days”
ExpiresByType video/ogg “access plus 1 month”
ExpiresByType audio/ogg “access plus 1 month”
ExpiresByType video/mp4 “access plus 1 month”
ExpiresByType video/webm “access plus 1 month”
ExpiresByType application/x-font-woff “access plus 1 month”
ExpiresByType application/vnd.ms-fontobject “access plus 1 month”
ExpiresByType application/xml “access plus 0 seconds”
ExpiresByType application/json “access plus 0 seconds”
ExpiresByType application/rss+xml “access plus 1 hour”
ExpiresByType application/atom+xml “access plus 1 hour”
</IfModule>
## EXPIRES CACHING ##
<IfModule mod_expires.c>
ExpiresActive On
ExpiresByType image/jpg “access 1 year”
ExpiresByType image/jpeg “access 1 year”
ExpiresByType image/gif “access 1 year”
ExpiresByType image/png “access 1 year”
ExpiresByType text/css “access 1 month”
ExpiresByType application/pdf “access 1 month”
ExpiresByType application/javascript “access 1 month”
ExpiresByType application/x-javascript “access 1 month”
ExpiresByType application/x-shockwave-flash “access 1 month”
ExpiresByType image/x-icon “access 1 year”
ExpiresDefault “access 2 days”
</IfModule>
## EXPIRES CACHING ##
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{HTTP_HOST} ^heromask.es$ [OR]
RewriteCond %{HTTP_HOST} ^www.heromask.es$
RewriteRule (.*)$ http://www.edinventa.com/$1 [R=301,L]
</IfModule>
RewriteCond %{HTTP_HOST} ^educainventions\.com$ [OR]
RewriteCond %{HTTP_HOST} ^www\.educainventions\.com$
RewriteCond %{REQUEST_URI} !^/[0-9]+\..+\.cpaneldcv$
RewriteCond %{REQUEST_URI} !^/[A-F0-9]{32}\.txt(?:\ Comodo\ DCV)?$
RewriteRule ^(.*)$ “https\:\/\/www\.edinventa\.com\/$1” [R=301,L]
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress
RewriteCond %{HTTP_HOST} ^heromask\.es$ [OR]
RewriteCond %{HTTP_HOST} ^www\.heromask\.es$
RewriteCond %{REQUEST_URI} !^/[0-9]+\..+\.cpaneldcv$
RewriteCond %{REQUEST_URI} !^/[A-F0-9]{32}\.txt(?:\ Comodo\ DCV)?$
RewriteRule ^/?$ “https\:\/\/www\.edinventa\.com\/” [R=301,L]
