Simulating (2D) Chemical Reaction in Porous Medium, DEFINE_VR_RATE,Divergence detected in AMG Solver

In 2D Model, Reaction in porous Zone, Error occurs on hooking UDF , DEFINE_VR_RATE in Fluent, The error spikes just after running calculation after 1st iteration.

Divergence detected in AMG Solver: TEMPERATURE

Divergence detected in AMG solver species 0

and Divergence detected in AMG solver species 1...2..3..4

Floating-point exception error object #f

Any solution for this, Does anybody have previous issues like this?


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