Calling Teraspace program from CL problem

I called a Teraspace model C program from CL program with parameter
and I got an error message:
 
Space address is not a teraspace storage address                     
Application error.  MCH0609 unmonitored by ATDIRSCAN at statement *N,
  instruction X'0000'.                                               
Function check. CEE9901 unmonitored by SCNAT at statement 0000000300,
  instruction X'0000'.   
 
More details:
 
1. The CMD file is:
  
*************** Beginning of data *******************************
             CMD        PROMPT('Scan by AT')          
             PARM       KWD(OBJ) TYPE(*PNAME) LEN(256) MIN(1) +  
                          PROMPT('IFS Directory')                
****************** End of data **********************************
 
2. The CLP file is:
             PGM        (&OBJ)                                          
             DCL        &OBJ *CHAR 256                                  
             CALL       PGM(AT/ATDIRSCAN) PARM(&OBJ +                   
                          '--verbose' )                                        
             ENDPGM                                                     

3. The program AT/ATDIRSCAN is compiled as TERASPACE program.
    If I call the program AT/ATDIRSCAN from command line it works perfect.
    For instance:
    CALL       PGM(AT/ATDIRSCAN) PARM('/DTA'  '--verbose')    
 
4. If I call the program by the CMD above, I get the prompt :
                
 IFS Directory  . . . . . . . . .   
 
When I type  '/DTA' (+enter) , I get the error message:
CEE9901 received by procedure SCNAV. (C D I R)   

from the DSPJOBLOG I can see the following as above:
 
Space address is not a teraspace storage address                     
Application error.  MCH0609 unmonitored by ATDIRSCAN at statement *N,
  instruction X'0000'.                                               
Function check. CEE9901 unmonitored by SCNAT at statement 0000000300,
  instruction X'0000'.  
 
Waiting for help...
 
Regards,
 
Zvi


                                                               


                                          



                
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