[PWGCF] flowMc, flowTask: small fix (#9841)

Author: Luzhiyongg

PWGCF/Flow/Tasks/flowMc.cxx

@@ -149,7 +149,7 @@ struct FlowMc {
 
   using RecoTracks = soa::Join<aod::TracksIU, aod::TracksExtra>;
 
-  void process(aod::McCollision const& mcCollision, soa::Join<aod::McParticles, aod::ParticlesToTracks> const& mcParticles, RecoTracks const&)
+  void process(aod::McCollision const& mcCollision, aod::BCsWithTimestamps const&, soa::Join<aod::McParticles, aod::ParticlesToTracks> const& mcParticles, RecoTracks const&)
   {
 
     float imp = mcCollision.impactParameter();

PWGCF/Flow/Tasks/flowTask.cxx

@@ -368,8 +368,8 @@ struct FlowTask {
     fGFW->AddRegion("poiN", -0.8, -0.4, 1 + fPtAxis->GetNbins(), 2);
     fGFW->AddRegion("poiN10", -0.8, -0.5, 1 + fPtAxis->GetNbins(), 2);
     fGFW->AddRegion("poifull", -0.8, 0.8, 1 + fPtAxis->GetNbins(), 2);
-    fGFW->AddRegion("olN", -0.8, -0.4, 1, 4);
-    fGFW->AddRegion("olN10", -0.8, -0.5, 1, 4);
+    fGFW->AddRegion("olN", -0.8, -0.4, 1 + fPtAxis->GetNbins(), 4);
+    fGFW->AddRegion("olN10", -0.8, -0.5, 1 + fPtAxis->GetNbins(), 4);
     fGFW->AddRegion("olfull", -0.8, 0.8, 1 + fPtAxis->GetNbins(), 4);
 
     corrconfigs.push_back(fGFW->GetCorrelatorConfig("full {2 -2}", "ChFull22", kFALSE));