VAG Glow Plug Light Flashing

After I changed the EGR and its coolant pump, everything was ok for 200km, and now I was warned two times by the glow plug led, the car had a lack of power, but after restart everything come back to normal. A scan with VCDS found 3 errors:
3 Faults Found:

4875 - Coolant Pump 2
P261A 00 [096] - Open circuit
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 4
Mileage: 121520 km
Date: 2016.04.01
Time: 07:53:55

4891 - EGR Valve (N18)
P0403 00 [096] - Malfunction
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:

4892 - EGR Valve (N18)
P0403 00 [096] - Malfunction
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 5
Mileage: 121638 km
Date: 2016.04.10
Time: 13:15:53

The errors are from the new parts and I'm not sure what means "Intermittent - Not Confirmed"...