3204296 - The client copy is terminated as the error "An exception with the type CX_SY_CONVERSION_OVERFLOW was raised"

The client copy with new tools SCCLN/SCC9N is terminated. In the tab "Exit Message" tab in SCC3, you will find the following message:
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PHASE_COPY_SOURCE_TO_TARGET WAIT_FOR_LAST_TASK An exception with the type CX_SY_CONVERSION_OVERFLOW was raised, but was not handled locally or declared in a RAISING clause
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In the "Log Header" tab in SCC3, there will be the following error message:
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 Execution stopped without DB update (timeout, system decommissioning, unhandleable exception)
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The following dump will also be found in ST22:

Category               ABAP programming error
Runtime Errors         RAISE_EXCEPTION
ABAP Program           CL_SCCR_PCTRL_TABLE===========CP
Application Component  BC-CTS-CCO

 Short Text
     Exception condition "COMMUNICATION_FAILURE" triggered

ABAP system

PHASE_COPY_SOURCE_TO_TARGET, WAIT_FOR_LAST_TASK, CX_SY_CONVERSION_OVERFLOW, timeout, system decommissioning, unhandleable exception, RAISE_EXCEPTION, CL_SCCR_PCTRL_TABLE,COMMUNICATION_FAILURE , KBA , BC-CTS-CCO , Client Copy (For ByD issues select BC-TLM-CP) , Problem