Thank you very much for the message.  The related notebook is very long.  I attach a code, with changed inputs for simplicity, which reproduce the crash.
f = Interpolation[
  Flatten[ParallelTable[{{10^Enuindex, 10^
      Etauindex}, (NIntegrate[
        10^Enuindex yy, {yy, 0, 1. - 10^Etauindex/10^Enuindex}] +
       NIntegrate[
        10^Enuindex yy, {yy, 0,
         1. - 10^Etauindex/10^Enuindex}]) }, {Enuindex, 4., 12.,
     2.}, {Etauindex, 3., Enuindex, 1.}], 1]]
This is the code that is reproducing the crash.  I am using Mathematica 9.0.1.0 in Mac OS X.
Thanks and best regards,
Ranjan Laha.