What specifically do you need help with? Both the error messages there are
explicit about what the issues are, first you have failed to correctly
adjust the number of molecules of the topology (.top) to match the
coordinate file. You also have a +10 net charge, which is unlikely to be a
good idea.
Dear Kushal,
Regarding the first error, I feel that you have done a few mistakes while
updating your topology section as your system has more atoms than what is
in the topology. Kindly go through the tutorials on this site -
http://www.mdtutorials.com/gmx/index.html, to get a picture on how to do
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