Error occured while processing the DownloadInstalledProductsXML

Hi,

after updateten my test system from 10.1.2127.16.W to 10.1.2137.11.W patch scan isn't working anymore.
Nothing else was changed. Only DC Update including the automatic agent update.

Clients have this error in the logs:

22-02-07 APD 05:15:19 10.1.2127.16.W NO 05:18:24 3.08 DiffScan Successfully posted the patch scan data to the server
22-02-07 APD 17:40:56 10.1.2127.16.W NO 17:43:39 2.71 DiffScan Successfully posted the patch scan data to the server
22-02-08 APD 04:25:18 10.1.2127.16.W NO 04:28:16 2.97 DiffScan Successfully posted the patch scan data to the server
22-02-08 APD 17:46:56 10.1.2127.16.W NO 17:50:08 3.20 DiffScan Successfully posted the patch scan data to the server
22-02-08 Manual 20:20:35 10.1.2137.11.W NO 20:20:38 0.05 DiffScan Problem while loading Patch Resource XML.
22-02-08 APD 20:21:17 10.1.2137.11.W NO 20:23:41 2.40 DiffScan Error occured while processing the DownloadInstalledProductsXML
22-02-08 DBSYNC 20:24:10 10.1.2137.11.W NO 20:26:24 2.24 DiffScan Error occured while processing the DownloadInstalledProductsXML
22-02-08 APD 20:34:22 10.1.2137.11.W NO 20:37:14 2.86 DiffScan Error occured while processing the DownloadInstalledProductsXML
22-02-08 APD 22:04:42 10.1.2137.11.W NO 22:07:10 2.47 DiffScan Error occured while processing the DownloadInstalledProductsXML
22-02-08 Manual 22:32:15 10.1.2137.11.W NO 22:34:11 1.94 DiffScan Error occured while processing the DownloadInstalledProductsXML
22-02-08 APD 22:34:11 10.1.2137.11.W NO 22:36:11 2.00 DiffScan Error occured while processing the DownloadInstalledProductsXML
22-02-08 Install 22:47:33 10.1.2137.11.W NO
22-02-08 Install 22:49:44 10.1.2137.11.W NO 22:52:03 2.31 FullScan Error occured while processing the DownloadInstalledProductsXML

Any idea how I can fix it?

Bye,

Alf