Catastrophic Compiler error IFC 2017

I am getting a catastrophic compiler error using the IFC 2017 version.  Have never encountered this before.  I have been compiling the same code for years using IFC.  The 2015 version never gave this error.

matpro\fcph.for(63): catastrophic error: **Internal compiler error: internal abort** Please report this error along with the circumstances in which it occurred in a Software Problem Report.  Note: File and line given may not be explicit cause of this error.
compilation aborted for matpro\fcph.for (code 1)

   data c1u ,c2u ,c3u ,thu ,edu / 296.7d0, 2.43d-02, 8.745d07,
     +                                 535.285d0, 1.577d05 /
       data c1pu,c2pu,c3pu,thpu,edpu/ 347.4d0, 3.95d-04, 3.860d07,
     +                                 571.0d0, 1.967d05 /
       data c1gd,c2gd,c3gd,thgd,edgd/ 315.86d0, 4.044d-02 , 0.0d0,
     +                                348.0d0, 0.0d0/
      cp(c1,c2,c3,th,ed,t,fotmtl) =
     # c1*(th**2)*exp(th/t)/((t**2)*((exp(th/t)-1.d0)**2))+c2*t+
Line 63     # (fotmtl/2.d0)*(c3*ed/(8.314d0*(t**2)))*exp(-ed/(8.314d0*t))
      t = ftemp
      r = facmot
      tm = ftmelt
      fcomp = comp/100.0d0
      fcpmol = 503.0d0
c   fcpmol = specific heat