fixed several crashes

src/DirectoryNode.cpp

@@ -167,6 +167,19 @@ void DirectoryNode::advanceToFirstMP3InThisNode()
 
 DirectoryNode *DirectoryNode::advanceToMP3(const uint16_t id)
 {
+
+
+    for (size_t i = 0; i < ids.size(); i++)
+        {
+            if (id == ids[i])
+            {
+                // Found the current MP3 file
+                currentPlaying = &mp3Files[i];
+                currentPlayingId = id;
+                return this;
+            }
+        }
+
     for (auto subdir : subdirectories)
     {
         if (subdir->getId() == id)
@@ -181,12 +194,9 @@ DirectoryNode *DirectoryNode::advanceToMP3(const uint16_t id)
             if (id == subdir->ids[i])
             {
                 // Found the current MP3 file
-                if (i < subdir->mp3Files.size() - 1)
-                {
-                    subdir->currentPlaying = &subdir->mp3Files[i];
-                    subdir->currentPlayingId = id;
-                    return subdir;
-                }
+                subdir->currentPlaying = &subdir->mp3Files[i];
+                subdir->currentPlayingId = id;
+                return subdir;
             }
         }
     }