BADI_UJ_CUSTOM_LOGIC Error when run badi Logic

Dear Expert,

I have some changes in one of Badi Implementation in UJ_CUSTOM_LOGIC class and the system now can not run any logic script or badi logic. I have checked by st22 with error like this

The current ABAP program "CL_UJK_RUN_LOGIC==============CP" had to be

  terminated because it has

come across a statement that unfortunately cannot be executed.

In include "BADI_UJ_CUSTOM_LOGIC==========CM000     ", in line 0 of program

  "BADI_UJ_CUSTOM_LOGIC==========CP        ", the following syntax errors

have occurred:

The specified type cannot be converted into the target variables.

I don't know how to fix it, please help me

thanks so much