Reporting Agent - CX_SY_IMPORT_MISMATCH_ERROR

Hi experts,

we´re facing a problem with our precalulated reports since upgrade to BW 701 SP 08.

Before we we´re running BW 7.0.

We are using reporting agent to precalculate the reports. This step is working fine.

To access the reports we use a self made BSP application. Since the release upgrade i get the following error message when trying to access the precalulated report(s):

"Fehler im internen Datenformat.

Eine Exception vom Typ CX_SY_IMPORT_MISMATCH_ERROR ist aufgetreten, wurde aber weder lokal behandelt noch durch eine RAISING-Klausel deklariert.

Fehler beim Erzeugen des Data Providers . "

This is the URL we are accessing:

http://sapXXX.XXXX.XXXX:XXXX/SAP/BW/BEx?sap-language=DE&bsplanguage=DE&CMD=LDOC&TEMPLATE_ID=S_07_WT120&FILTER_IOBJNM=0COSTCENTER&FILTER_VALUE=01011-10-B4020&FILTER_NODE_IOBJNM=0HIER_NODE&VAR_NAME_1=0P_PER3&VAR_NAME_2=0P_FYEAR&VAR_NAME_3=ZKSHMFS&VAR_VALUE_EXT_1=1&VAR_VALUE_EXT_2=2011&DATA_MODE=STORED&no_session_cookie=x

When i change the DATA_MODE to "NEW" the report is starting and i get the screen to input the values for year/month.

Can anyone provide some help?

Thanks in advance.

Best regards, Mario