Divergence detected in AMG solver
I am solving a multiphase model using VOF, with energy and viscous laminar flow active. I have developed UDFs of mass, momentum and energy source terms. The simulation runs quite nicely as expected for a few time steps but after that this error pops up.
What does this error exactly mean and where exactly is the problem? (It shows divergence for all the equations it is solving even if the residuals are not diverging).