diff --git a/internal/logs/logs.go b/internal/logs/logs.go
index d0bac4d11..893be7006 100644
--- a/internal/logs/logs.go
+++ b/internal/logs/logs.go
@@ -164,17 +164,12 @@ const (
 	EventNotaryParserNotSet                                              = "notary parser not set"
 	EventCouldNotParseNotaryEvent                                        = "could not parse notary event"
 	EventNotaryHandlersForParsedNotificationEventWereNotRegistered       = "notary handlers for parsed notification event were not registered"
-	EventIgnoreNilEventParser                                            = "ignore nil event parser"
 	EventListenerHasBeenAlreadyStartedIgnoreParser                       = "listener has been already started, ignore parser"
 	EventRegisteredNewEventParser                                        = "registered new event parser"
-	EventIgnoreNilEventHandler                                           = "ignore nil event handler"
 	EventIgnoreHandlerOfEventWoParser                                    = "ignore handler of event w/o parser"
 	EventRegisteredNewEventHandler                                       = "registered new event handler"
-	EventIgnoreNilNotaryEventParser                                      = "ignore nil notary event parser"
 	EventListenerHasBeenAlreadyStartedIgnoreNotaryParser                 = "listener has been already started, ignore notary parser"
-	EventIgnoreNilNotaryEventHandler                                     = "ignore nil notary event handler"
 	EventIgnoreHandlerOfNotaryEventWoParser                              = "ignore handler of notary event w/o parser"
-	EventIgnoreNilBlockHandler                                           = "ignore nil block handler"
 	StorageOperation                                                     = "local object storage operation"
 	BlobovniczaCreatingDirectoryForBoltDB                                = "creating directory for BoltDB"
 	BlobovniczaOpeningBoltDB                                             = "opening BoltDB"
diff --git a/pkg/morph/event/listener.go b/pkg/morph/event/listener.go
index 6e6184e77..b67546804 100644
--- a/pkg/morph/event/listener.go
+++ b/pkg/morph/event/listener.go
@@ -459,12 +459,6 @@ func (l *listener) SetNotificationParser(pi NotificationParserInfo) {
 		zap.Stringer("event_type", pi.getType()),
 	)
 
-	parser := pi.parser()
-	if parser == nil {
-		log.Info(context.Background(), logs.EventIgnoreNilEventParser)
-		return
-	}
-
 	l.mtx.Lock()
 	defer l.mtx.Unlock()
 
@@ -492,12 +486,6 @@ func (l *listener) RegisterNotificationHandler(hi NotificationHandlerInfo) {
 		zap.Stringer("event_type", hi.GetType()),
 	)
 
-	handler := hi.Handler()
-	if handler == nil {
-		log.Warn(context.Background(), logs.EventIgnoreNilEventHandler)
-		return
-	}
-
 	// check if parser was set
 	l.mtx.RLock()
 	_, ok := l.notificationParsers[hi.scriptHashWithType]
@@ -555,12 +543,6 @@ func (l *listener) SetNotaryParser(pi NotaryParserInfo) {
 		zap.Stringer("notary_type", pi.RequestType()),
 	)
 
-	parser := pi.parser()
-	if parser == nil {
-		log.Info(context.Background(), logs.EventIgnoreNilNotaryEventParser)
-		return
-	}
-
 	l.mtx.Lock()
 	defer l.mtx.Unlock()
 
@@ -593,12 +575,6 @@ func (l *listener) RegisterNotaryHandler(hi NotaryHandlerInfo) {
 		zap.Stringer("notary type", hi.RequestType()),
 	)
 
-	handler := hi.Handler()
-	if handler == nil {
-		log.Warn(context.Background(), logs.EventIgnoreNilNotaryEventHandler)
-		return
-	}
-
 	// check if parser was set
 	l.mtx.RLock()
 	_, ok := l.notaryParsers[hi.notaryRequestTypes]
@@ -627,11 +603,6 @@ func (l *listener) Stop() {
 }
 
 func (l *listener) RegisterBlockHandler(handler BlockHandler) {
-	if handler == nil {
-		l.log.Warn(context.Background(), logs.EventIgnoreNilBlockHandler)
-		return
-	}
-
 	l.blockHandlers = append(l.blockHandlers, handler)
 }