SAP PS Report Error

Question

hi, expert:
   now the user use cn25 to confirm the activity. for example
Activty A:  actual start : 0209-06-02  actual end: 0209-06-30
now the user find this error. then cancel  the document.
After cancel. when use  T-Code "CN41" to  view the report. there is ABAP down.
but the other T-codes "CN43N","CN46N", "CN47N", "CN48N",  the report can execute correctly.
how to solve this error.
thanx!

Answer 1

thanks for all.
the error message is as below:
Error analysis          
          A RAISE statement in the program "SAPLCXOT" raised the exception
          condition "PARAMETERS_NOT_VALID".
          Since the exception was not intercepted by a superior
          program, processing was terminated.          
          Short description of exception condition:
          For detailed documentation of the exception condition, use
          Transaction SE37 (Function Library). You can take the called
          function module from the display of active calls.
How to correct the error     
          If the error occures in a non-modified SAP program, you may be able to
          find an interim solution in an SAP Note.
          If you have access to SAP Notes, carry out a search with the following
          keywords:
          RAISE_EXCEPTION " "
          SAPLCXOT or "LCXOTF10"
          SCHED_WITHOUT_OP_TIME          
          or          
          SAPLCXOT "PARAMETERS_NOT_VALID"          
          or          
          RCNSO000  "PARAMETERS_NOT_VALID"