Air Mass Sensor Error: Is it the AGR Valve?

My Caddy received the software update two weeks ago, after a threat of being decommissioned. After driving 800 km, it suddenly started to jerk intermittently. Yesterday, the jerking was much more severe, and the engine check light started flashing.
Now the warning light often flashes, but not constantly, and the car jerks repeatedly.
Please provide an assessment...
VCDS says:
Address 01: Engine Control Module (J623-CAYD)
Label file: .DRV\03L-906-023-CAY.clb
Part number SW: 03L 906 023 TF, Part number HW: 03L 907 425 C.
Part: R4 1.6L TDI, H43 9979.
Revision: --H43--- Serial Number: 00000000000000
Encoding: 00114016030400080000
Operating number: WSC 35110 790 50316
ASAM Dataset: EV_ECM16TDI02103L906023TF 003003
ROD: EV_ECM16TDI02103L997557L_VW36.rod
VCID: 7D8311F763B619377D-8028

"One error found:"
7330 - Air mass meter (G70)
P0101 00 [096] - Implausible signal.
Sporadic - unconfirmed - checked since last deletion.
Environmental conditions:
Error status: 00000001
Error priority: 2
Error frequency: 2.
Mileage: 42,366 km
Date: 2018.06.20
Time: 11:51:22

Motor speed: 1289.50 rpm.
Normalized load value: 0.0%
Vehicle speed: 48 km/h
Coolant temperature: 95 °C
Intake air temperature: 24 °C
Atmospheric pressure: 990 mbar.
Voltage at terminal 30: 14.231 V.
Dynamic environmental data: 20 96.
Lost count after OBD: 39.
Air mass: Actual value (mg/stroke) - MAF_MEAS: 480.423 mg/stroke.
Air mass ratio, filtered - FAC_MAF_CYL_KGH_RATIO_FIL: 0.87616
Exhaust gas recirculation valve: Actual value - ANG_EGRV[0]: 0.000 %.
Throttle valve actuator: Actual value - ANG_THR[0]: 96.118 %
Boost pressure: Target value - MAP_SP_MMV: 1065.41 hPa.
Boost pressure: Actual value - MAP_MMV: 1065.41 hPa.
Motor torque - TQI_SP: 0.00 Nm

Readiness: 0 0 0 0 0

Could the error be related to the update?

Thank you!