diff --git a/engine/cdrs.go b/engine/cdrs.go
index 46c28d8c0..70ccf54f6 100644
--- a/engine/cdrs.go
+++ b/engine/cdrs.go
@@ -531,6 +531,7 @@ func (self *CdrServer) V1StoreSMCost(attr AttrCDRSStoreSMCost, reply *string) er
 	if item, err := self.getCache().Get(cacheKey); err == nil && item != nil {
 		if item.Value != nil {
 			*reply = item.Value.(string)
+			utils.Logger.Err(fmt.Sprintf("<CDRS> Serving cached error for key: %s, err: %s", cacheKey, *reply))
 		}
 		return item.Err
 	}
diff --git a/sessionmanager/smgeneric.go b/sessionmanager/smgeneric.go
index 9184decd0..ab2b23d72 100644
--- a/sessionmanager/smgeneric.go
+++ b/sessionmanager/smgeneric.go
@@ -562,7 +562,7 @@ func (self *SMGeneric) ChargeEvent(gev SMGenericEvent, clnt *rpc2.Client) (maxDu
 			OriginID:    gev.GetUUID(),
 			CostDetails: cc,
 		}
-		if err := self.cdrsrv.Call("CdrsV1.StoreSMCost", engine.AttrCDRSStoreSMCost{Cost: smCost, CheckDuplicate: true}, &reply); err != nil && err != utils.ErrExists {
+		if err := self.cdrsrv.Call("CdrsV1.StoreSMCost", engine.AttrCDRSStoreSMCost{Cost: smCost, CheckDuplicate: true}, &reply); err != nil && err.Error() != utils.ErrExists.Error() {
 			withErrors = true
 			utils.Logger.Err(fmt.Sprintf("<SMGeneric> Could not save CC: %+v, RunID: %s error: %s", cc, sR.DerivedCharger.RunID, err.Error()))
 		}