MySQL connection error: (# 2002) 'Cannot assign requested address'

Stack trace:
[ 0] __construct({Array( [idServicio] => 1240/941 [dbHost] => vsv...})  @  /base/zfx/data-model/Model.php[102]
[ 1] __construct(plantillas_web, {Array( [idServicio] => 1240/941 [dbHost] => vsv...})  @  /models/my/ModeloBase.php[27]
[ 2] __construct(plantillas_web, {Array( [idServicio] => 1240/941 [dbHost] => vsv...})  @  /modules/diseno/models/MPlantillasweb.php[37]
[ 3] __construct(, {Array( [idServicio] => 1240/941 [dbHost] => vsv...})  @  /base/zfx/activex-tools/ModelHandler.php[110]
[ 4] inst(diseno, plantillasweb, , {Array( [idServicio] => 1240/941 [dbHost] => vsv...}, )  @  /modules/index/controllers/Index.php[221]
[ 5] index()  @  /modules/index/controllers/Index.php[48]
[ 6] _main()  @  /index.php[197]