The present invention relates to an error processing unit for a medical machine (e.g., a hemodialysis machine or a peritoneal dialysis machine). The error processing unit is configured to detect a number of consecutive confirmation inputs in response to each currently output machine error message, representing a status—requiring a message—of the dialysis machine, as an ACTUAL value. When a preconfigured TARGET value is exceeded by the ACTUAL value, a modified machine control is triggered and results in additional or modified outputs being output on a graphical user interface.