Convergence problem

Hi,

Im trying to simulate a circuit but its showing me  convergence error and bad pivot, so I checked yes for the dc_pivot _check (simulation-> options-> analog)  but the error still persist.

Also, I found a spice file which may solve the convergence problem, how can I add it to the spectre simulation

Im using IC6.17 and mmsim15.10.801

thank you

Regards

shobhit