[SOLVED] Projeqtor does not run any more - by: naceur.ayachi@tsi.com.tn

I receive this page when I try to start the project
This happened suddenly while C: was running out of Disk Space.
I created space in C: but the problem remains the same.

SQLSTATE[HY000] [2002] Aucune connexion n�a pu �tre �tablie car l�ordinateur cible l�a express�ment refus�e.


( ! ) Fatal error: Call to a member function query() on a non-object in C:\wamp\www\projeqtor\projeqtor\model\persistence\Sql.php on line 92
Call Stack
# Time Memory Function Location
1 0.0075 1276896 {main}( ) ..\main.php:0
2 0.0274 2876560 require_once( 'C:\wamp\www\projeqtor\projeqtor\tool\projeqtor.php' ) ..\main.php:37
3 0.0770 8893504 include( 'C:\wamp\www\projeqtor\projeqtor\view\login.php' ) ..\projeqtor.php:206
4 0.0780 9072584 Sql::getDbVersion( ) ..\login.php:38
5 0.0780 9073360 SqlElement::getSingleSqlElementFromCriteria( ) ..\Sql.php:340
6 0.0781 9074264 SqlElement->getSqlElementsFromCriteria( ) ..\SqlElement.php:2125
7 0.0781 9076352 SqlElement->getDataType( ) ..\SqlElement.php:1906
8 0.0781 9076512 SqlElement::getFormatList( ) ..\SqlElement.php:2447
9 0.0782 9077896 Sql::query( ) ..\SqlElement.php:2817