fixed error 2

benchmarks/barrel_ecal/scripts/emcal_barrel_pions_analysis.cxx

@@ -181,7 +181,7 @@ void emcal_barrel_pions_analysis(const char* input_fname = "sim_output/sim_emcal
   auto hdE          = d1.Histo1D({"hdE",      "dE; dE[GeV]; Events",              20, -7.5, 7.5}, "dE");//changed from 100
   auto hdE_rel      = d1.Histo1D({"hdE_rel",  "dE Relative; dE Relative; Events", 20, -7.5, 7.5}, "dE_rel");//changed from 100
   hdE_rel->Fit("gaus", "", "", -7.5,  7.5);
-  double* res       = hdE_rel->GetParameters();
+  double* res       = hdE_rel->GetFunction("gaus")->GetParameters();
 
   //Pass/Fail
   /*