From ea77f357f23149772d3c3f5b706480fb304b08de Mon Sep 17 00:00:00 2001
From: ionutboangiu <ionut.boangiu@itsyscom.com>
Date: Mon, 7 Apr 2025 09:13:26 +0300
Subject: [PATCH] prevent panic when len(AlteredFields) == 0

---
 engine/cdrs.go | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/engine/cdrs.go b/engine/cdrs.go
index 4017335f1..bb7c2e229 100644
--- a/engine/cdrs.go
+++ b/engine/cdrs.go
@@ -329,7 +329,7 @@ func (cdrS *CDRServer) chrgrSProcessEvent(cgrEv *utils.CGREventWithArgDispatcher
 	return
 }
 
-// attrSProcessEvent will send the event to StatS if the connection is configured
+// attrSProcessEvent will send the event to AttributeS if the connection is configured.
 func (cdrS *CDRServer) attrSProcessEvent(cgrEv *utils.CGREventWithArgDispatcher) (err error) {
 	var rplyEv AttrSProcessEventReply
 	attrArgs := &AttrArgsProcessEvent{
@@ -342,10 +342,14 @@ func (cdrS *CDRServer) attrSProcessEvent(cgrEv *utils.CGREventWithArgDispatcher)
 	}
 	if err = cdrS.connMgr.Call(cdrS.cgrCfg.CdrsCfg().AttributeSConns, nil,
 		utils.AttributeSv1ProcessEvent,
-		attrArgs, &rplyEv); err == nil && len(rplyEv.AlteredFields) != 0 {
+		attrArgs, &rplyEv); err != nil {
+		if err.Error() == utils.ErrNotFound.Error() {
+			err = nil // ignore ErrNotFound
+		}
+		return
+	}
+	if len(rplyEv.AlteredFields) != 0 {
 		cgrEv.CGREvent = rplyEv.CGREvent
-	} else if err.Error() == utils.ErrNotFound.Error() {
-		err = nil // cancel ErrNotFound
 	}
 	return
 }