Short Circuit on MPPT RS 450/200

short circuit alarm on my MPPT RS 450/200
i did reset it 3 times without result, any body else got the same problem?

@Petzl Maybe refer to these two documents. https://www.victronenergy.com/upload/documents/Pre-RMA_bench_test_instructions/114199-Pre-RMA_bench_test_instructions-pdf-en.pdf and https://www.victronenergy.com/upload/documents/SmartSolar_MPPT_RS/13860-SmartSolar_MPPT_RS-pdf-en.pdf Is it the newer model?

Which error code does the MPPT RS itself show?

Does the error also occur if the PV on the specific tracker is disconnected?