erro virtuemart

Pessoal,


Alguém já enfrentou esse erro ou parecido? Meu site estava funcionando numa boa e "do nada" começou a dá esse erro:


Warning: require(/home/meusite/public_html/site/administrator/components/com_virtuemart/helpers/config.php) [function.require]: failed to open stream: Permission denied in /home/meusite/public_html/site/components/com_virtuemart/virtuemart.php on line 24

Fatal error: require() [function.require]: Failed opening required '/home/meusite/public_html/site/administrator/components/com_virtuemart/helpers/config.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/meusite/public_html/site/components/com_virtuemart/virtuemart.php on line 24

E quanto dento logar com administrador aparece o seguinte erro

Warning: require_once(/home/meusite/public_html/site/administrator/components/com_login/login.php) [function.require-once]: failed to open stream: Permission denied in /home/meusite/public_html/site/libraries/joomla/application/component/helper.php on line 383

Fatal error: require_once() [function.require]: Failed opening required '/home/meusite/public_html/site/administrator/components/com_login/login.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/meusite/public_html/site/libraries/joomla/application/component/helper.php on line 383

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