Fatal error during md run

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I am getting the fatal error during md run:
An atom moved too far between two domain decomposition steps
This usually means that your system is not well equilibrated.
I did both nvt and npt equlibration run for 1ns each.

Thank You,
Yours sincerely,


Dear sir,
During equilibration I got some warnings. Are they are responsible for the fatal error?

Thank You
Yours sincerely,