aiuto dallo staff:problema indicizzazione google

ciao da circa 10-15 giorni google non indicizza le pagine del mio sito,ho letto varie guide al riguardo ma ancora non ho capito il perchè di questo improvviso problema.Ora chiedo a qualcuno dello staff se il problema può essere nel file robots.text : Dato che google non riesce ad accedere al file robots.text può essere l'indirizzo della sitemap presente nel file??




# If the Joomla site is installed within a folder such as at
# e.g. www.example.com/joomla/ the robots.txt file MUST be
# moved to the site root at e.g. www.example.com/robots.txt
# AND the joomla folder name MUST be prefixed to the disallowed
# path, e.g. the Disallow rule for the /administrator/ folder
# MUST be changed to read Disallow: /joomla/administrator/
#
# For more information about the robots.txt standard, see:
# http://www.robotstxt.org/orig.html
#
# For syntax checking, see:
# http://www.sxw.org.uk/computing/robots/check.html

User-agent: *
Disallow: /administrator/
Disallow: /cache/
Disallow: /cli/
Disallow: /components/
Disallow: /images/
Disallow: /includes/
Disallow: /installation/
Disallow: /language/
Disallow: /libraries/
Disallow: /logs/
Disallow: /media/
Disallow: /modules/
Disallow: /plugins/
Disallow: /templates/
Disallow: /tmp/


# BEGIN JCRAWLER-XML-SITEMAP-COMPONENT
Sitemap: http://studentincrisi.altervista.org...la/sitemap.xml
# END JCRAWLER-XML-SITEMAP-COMPONENT