diff --git a/DataQuality/DataQualityUtils/src/HanOutputFile.cxx b/DataQuality/DataQualityUtils/src/HanOutputFile.cxx
index adb22229ecbe40b319af5532fb19fd9d859321f1..6ebc31a951b3416cfee4c90c712e8058a93a5f84 100644
--- a/DataQuality/DataQualityUtils/src/HanOutputFile.cxx
+++ b/DataQuality/DataQualityUtils/src/HanOutputFile.cxx
@@ -852,7 +852,7 @@ void getImageBuffer(TImage* img, TCanvas* myC, char** x, int* y){
 bool HanOutputFile::saveHistogramToFile( std::string nameHis, std::string location, TDirectory* groupDir, bool drawRefs,std::string run_min_LB, std::string pathName,int cnvsType){
   std::pair<std::string,std::string> pngAndJson = getHistogram(nameHis,groupDir,drawRefs,run_min_LB,pathName,cnvsType);
   //std::string tosave = getHistogramPNG(nameHis, groupDir, drawRefs, run_min_LB, pathName);
-  if (pngAndJson.first== "") {
+  if (pngAndJson.first== ""&&pngAndJson.second=="") {
     return false;
   }
   std::string namePNG   = nameHis;
@@ -874,12 +874,12 @@ bool HanOutputFile::saveHistogramToFile( std::string nameHis, std::string locati
 std::string
 HanOutputFile::
 getHistogramPNG( std::string nameHis, TDirectory* groupDir, bool drawRefs,std::string run_min_LB, std::string pathName){
-    int cnvsType = 0;
+    int cnvsType = 1;
     return getHistogram(nameHis, groupDir,drawRefs,run_min_LB,pathName,cnvsType).first;
 }
 
 std::pair<std::string,std::string> HanOutputFile:: getHistogramJSON( std::string nameHis, TDirectory* groupDir, bool drawRefs,std::string run_min_LB, std::string pathName){
-    int cnvsType = 1;
+    int cnvsType = 2;
     return getHistogram(nameHis, groupDir,drawRefs,run_min_LB,pathName,cnvsType);
 }
 
@@ -1442,7 +1442,9 @@ std::pair<std::string,std::string> HanOutputFile:: getHistogram( std::string nam
       displayExtra(myC,display);
       myC->RedrawAxis();
 
-      ratioplot(myC ,h,hRef,display);      //RatioPad
+      if (hRef) {
+	ratioplot(myC ,h,hRef,display);      //RatioPad
+      }
       myC->cd();//might be unnecessary
       polynomial(myC,display,h); //draw polynome for TH1
 
@@ -2244,13 +2246,16 @@ void HanOutputFile::ratioplot (TCanvas* myC_upperpad ,TH1* h,TH1* hRef,std::stri
     TProfile* ph    = dynamic_cast<TProfile*>( h );
     TH1F *clonehist   ;
     TH1F *clonehistref;
-    if( ph != 0 ) {//profile
-      std::cout<<"it is a TProfile\n";
+    //transform if profiles
+    if( ph != 0 ) {
       clonehist=(TH1F*)ph->ProjectionX();
-      clonehistref=(TH1F*)phRef->ProjectionX();
-    }else{
+    } else {
       clonehist=(TH1F*)h->Clone();
       clonehist->Sumw2();
+    }
+    if ( phRef != 0 ) {
+      clonehistref=(TH1F*)phRef->ProjectionX();
+    }else{
       clonehistref=(TH1F*)hRef->Clone();
       clonehistref->Sumw2();
     }