Fix reversed check

pubsub.go

@@ -165,7 +165,7 @@ func (t *TwitchPubSub) reconnect() error {
 func (t *TwitchPubSub) Listen(topics []string) error {
 	err := t.listen(topics)
 
-	if err != nil {
+	if err == nil {
 		// Update topic list
 		t.SubscribedTopics = append(t.SubscribedTopics, topics...)
 	}