fix: removing unused main and adding error logging to otelexporter

Signed-off-by: Anthony Saieva <[email protected]>

core/processor/otelexporter.go

@@ -115,12 +115,14 @@ func (s *OTELExporter) Process(ch []interface{}, wg *sync.WaitGroup) {
 				nil,
 			)
 
+			if err != nil {
+				logger.Trace.Printf("OtelExporter Error producing kafka message %v", err)
+			}
+
 		}
 	}
 }
 
 func (s *OTELExporter) SetOutChan(ch []interface{}) {}
 
 func (s *OTELExporter) Cleanup() {}
-
-func main() {}