ERROR: NaN Detected

[dinghao1995]

Why does the "NaN Detected" error occur in MPAS-Ocean model? How can I avoid this error?

ERROR: NaN Detected in state see below for which field contained a NaN.
-- Statistics information for block fields
Field: latCell
Min: 1.36943187187523
Max: 1.49255447599597
Field: lonCell
Min: 2.08899279049403
Max: 2.94543001465641
Field: xCell
Min: -1143805.62697417
Max: -307518.073841824
Field: yCell
Min: 166269.388959060
Max: 964667.087088803
Field: zCell
Min: 6242495.70754897
Max: 6351737.29259555
Field: areaCell
Min: 72651600.2086354
Max: 103230194.923149

ERROR: NaN Detected in layerThickness.
-- Statistics information for layerThickness fields
Field: seaIcePressure
Min: 0.000000000000000E+000
Max: 0.000000000000000E+000
Field: atmosphericPressure
Min: 0.000000000000000E+000
Max: 0.000000000000000E+000
Field: rainFlux
Min: 0.000000000000000E+000
Max: 0.000000000000000E+000
Field: evaporationFlux
Min: 0.000000000000000E+000
Max: 0.000000000000000E+000
Field: snowFlux
Min: 0.000000000000000E+000
Max: 0.000000000000000E+000
Field: seaIceFreshWaterFlux
Min: 0.000000000000000E+000
Max: 0.000000000000000E+000
Field: iceRunoffFlux
Min: 0.000000000000000E+000