IC fluent gets terminated in between solving at a random time steps

hello guys,

iam try to solve gdi engine with air a cold flow simulation case, in between solving upto 700-800 time steps at a certain random time step the solver(calcuation) automatically gets terminated.

these has been happen three times. when i opened the windows event viewer there is a error which shows like this:

"Log Name:      Application

Source:        Application Error

Date:          02-04-2020 005:14

Event ID:      1000

Task Category: (100)

Level:         Error

Keywords:      Classic

User:          N/A

Computer:      MSI


Faulting application name: fl_mpi1910.exe, version:, time stamp: 0x5acbac27

Faulting module name: fl_mpi1910.exe, version:, time stamp: 0x5acbac27

Exception code: 0xc0000005

Fault offset: 0x00000000034e4298

Faulting process id: 0x3cb4

Faulting application start time: 0x01d60829c315eb70

Faulting application path: C:PROGRA~1ANSYSI~1v191fluentfluent19.1.0win643ddp_nodefl_mpi1910.exe

Faulting module path: C:PROGRA~1ANSYSI~1v191fluentfluent19.1.0win643ddp_nodefl_mpi1910.exe

Report Id: a0e4f333-1510-4366-a389-444cc57e6438

Faulting package full name: 

Faulting package-relative application ID: 


Iam using MSI GL65 9SDK I7th -9thgen 9750H octacore with 16gigs of ddr4 and 6gb nvidia GTX1660ti using ansys 19.1

i dont know what is the problem. iam attaching fluent error logs too. using parallel job with 6cores and gpu.
This has happened almost 3 times. please help

your help is very much appreciated.


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