Chevrolet Aveo Diesel_error code 89

Hello,
I have some issue with my 2012 Aveo Diesel with app. 100.000km counted.

Could somebody help / advise. Last weeks error code 089 came on mine dashboard. I could reset, but now the motor management light is on and no error code 089 anymore. Based on sone googling I have checked the gas full cap, seems to be ok. Anyone has more idea's what kind of simple solveable error this could be? Otherwise I have go to the dealer and let it checked.

Thanks in advance gr. Patrick.