Error while simulating i.e. time step too small

QSPICE
1

Timestep too small(1.25e-19) at t=2.5018e-14.

I am simulating power electronics circuit. how can i resolve this issue??

2

This is a general question without a schematic. The following are general answers.
However, the issue may lie in your circuit setup or subcircuit model, etc.

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