EVAP and fuel system failed

Hi there. My CLK350 shakes occasionally while at the red traffic light, engine light is not on yet. I did get a cylinder 1 misfire CEL before and replaced all spark plugs and problem solved so I should not have anything to do with spark plugs and coils. I just checked with iCarSoft and saw a few errors in the onboard-monitoring menu. EVAP and fuel system band 1&2 failed. What could be the problem and which parts shoul I check or replace? Thanks. [ATTACH... EVAP and fuel system failed

Hi there. My CLK350 shakes occasionally while at the red traffic light, engine light is not on yet. I did get a cylinder 1 misfire CEL before and replaced all spark plugs and problem solved so I should not have anything to do with spark plugs and coils. I just checked with iCarSoft and saw a few errors in the onboard-monitoring menu. EVAP and fuel system band 1&2 failed. What could be the problem and which parts shoul I check or replace? Thanks.

[ATTACH...

EVAP and fuel system failed

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