SCCM 2012 R2 SP1 Default reports gives the following error when trying to run.
system.web.services.protocols.soapexception an error has occurred during report processing
Open the srsrp.log file with cmtrace and open any raport in SCCM.
You can see the error logs in the file.
SCCM Reports re-creating steps,
Open Run with Administration rights,
Run the regedit.exe
Find the following key,
Set value to 0
All current default report will be appears with _
New reports will be created within minutes.