Add better error message for fileAccessActor

build/source/actors/file_access_actor/cpp_code/file_access_actor.cpp

@@ -41,6 +41,11 @@ behavior file_access_actor(stateful_actor<file_access_state>* self, int start_gr
                                  &self->state.num_gru, // Filler for num_hrus
                                  &self->state.gru_actor_stats,
                                  &self->state.err);
+    if (self->state.err != 0) {
+        aout(self) << "ERROR: File Access Actor - File_Access_init_Fortran\n";
+        self->send(self->state.parent, file_access_error::unhandleable_error, self);
+        return {};
+    }
 
     aout(self) << "Simluations Steps: " << self->state.num_steps << "\n";