Can anybody tell me CX_SY_DYN_CALL_ILLEGAL_TYPE solved runtime exception?

Hi All,

I am a new in hr abap.So, I got a runtime exception is coming.

    An exception occurred that is explained in detail below.

    The exception, which is assigned to class 'CX_SY_DYN_CALL_ILLEGAL_TYPE', was

     not caught and

    therefore caused a runtime error.

    The reason for the exception is:

    The call of the FORM "GET_DATA" is incorrect:

    The actual parameter no. 2 is at PERFORM not compatible with the

    structure type requested by FORM "GET_DATA".

    The FORM "GET_DATA" is defined in program "ZHRPRINT".

    This error occurs in Unicode if the fragment view of the types is

    incompatible.

The error throw on particular statement.Plz help me.

    PERFORM get_data(zhrprint) TABLES i_sel_emp
                                    r_pernr
                                    r_begda
                              USING p9027-doc_num.

  DESCRIBE TABLE i_sel_emp LINES cnt.

Thanks.

Regards,

Vijay