system list is empty on EP SP15

Hi,

I have system list empty in VC after upgrading EP to SP15. Does anybody have some idea? Here is a log from VC:

0001> Welcome to Visual Composer

0002> Server parameters:

     gkbUrl: 'http://tesves01/VCServer/'

     resUrl: 'http://tesves01/VCServer/'

     docsUrl: 'http://tesves01/VCServer/docs/'

     dataUrl: 'http://tesves01/VCData/'

     gkbPath: 'c:\inetpub\wwwroot\SAP NetWeaver Visual Composer\server\'

     resPath: 'c:\inetpub\wwwroot\SAP NetWeaver Visual Composer\server\res\'

     docsPath: 'c:\inetpub\wwwroot\SAP NetWeaver Visual Composer\server\docs\'

     dataPath: 'c:\inetpub\wwwroot\SAP NetWeaver Visual Composer\data\'

     logLevel: 'undefined'

     helpInstStatus: 'undefined'

     _tag: 'SUCCESS'

0003> Getting server data for server: http://tesves01/VCServer/

0004> Server parameters:

     gkbUrl: 'http://tesves01/VCServer/'

     resUrl: 'http://tesves01/VCServer/'

     docsUrl: 'http://tesves01/VCServer/docs/'

     dataUrl: 'http://tesves01/VCData/'

     gkbPath: 'c:\inetpub\wwwroot\SAP NetWeaver Visual Composer\server\'

     resPath: 'c:\inetpub\wwwroot\SAP NetWeaver Visual Composer\server\res\'

     docsPath: 'c:\inetpub\wwwroot\SAP NetWeaver Visual Composer\server\docs\'

     dataPath: 'c:\inetpub\wwwroot\SAP NetWeaver Visual Composer\data\'

     logLevel: 'undefined'

     helpInstStatus: 'undefined'

     _tag: 'SUCCESS'

0005> Portal Connector: try to connect to portal

0006> Portal Connector: connect to portal

0007> Portal Connector: before fire onConnectionStateChanged with value: connect

0008> Portal Connector: after fire onConnectionStateChanged with value: connect

0009> Portal Connector: connected to portal

0010> Portal Connector: invoke command name: discovery

     params:

     data: <Request type="getAllSystems"></Request>

0011> Portal Connector: fetch command url: http://tesves01/vcserver/bin/gm1669030.asp?d=Fri Feb 3 09:16:19 UTC+0100 2006

0012> Portal Connector: fetch requestData: GUIMACHINE_COMMAND=%3Ccommand%20name%3D%22discovery%22%3E%3Cparameters%2F%3E%3Cdata%3E%26lt%3BRequest%20type%3D%26quot%3BgetAllSystems%26quot%3B%26gt%3B%26lt%3B%2FRequest%26gt%3B%3C%2Fdata%3E%3C%2Fcommand%3E

0013> Portal Connector: result from fetch operation:

<result><exception source="command-handler"><message>com/sap/portal/services/api/connectorgateway/IConnectorGatewayService</message><severity value="NORMAL"/></exception></result>

0014> com/sap/portal/services/api/connectorgateway/IConnectorGatewayService

0015> EXCEPTION: file=Window.js, function=SET_FOCUS(), e=Can't move focus to the control because it is invisible, not enabled, or of a type that does not accept the focus.