player end of playlist, switch to live

assets/src/components/APlayer.vue

@@ -180,7 +180,7 @@ export default {
             let src = null;
 
             // from playlist
-            if(playlist !== null) {
+            if(playlist !== null && index != -1) {
                 let item = this.$refs[playlist].get(index);
                 if(!item)
                     throw `No sound at index ${index} for playlist ${playlist}`;