Zend error

Hostonnet install service, installed vshare 2.7 and requirements on my new server, and all worked fine. Today I migrate all DB of my old server to the new server where are vshare 2.7 installed (I previously upgraded my vshare to 2.7 on my old server). Since I migrate the DB to the new server, I have this error when I access to sign up page of the new vshare installation:

Fatal error: Zend_Json::require_once() [function.require]: Failed opening required 'Zend/Json/Encoder.php' (include_path='.:/var/www/vhosts/domain/httpdocs/include/:/var/www/vhosts/domain/httpdocs/include/PEAR/:.:') in /var/www/vhosts/domain/httpdocs/include/Zend/Json.php on line 98

May be any configuration of the DB (possible php path error)?


Can you help me?


Thanks

Mail me at [email protected] with url where i can see the error and ftp details.