Error toast when click on "playing" menu

[chienhao10]

Describe the bug A clear and concise description of what the bug is.

To Reproduce Steps to reproduce the behavior:

1. Go to 'add songs to queue list'
2. Click on 'playing menu bar at bottom'
3. everything works fine, cover shows and music still play but error toast shows
4. 

• The error toast did not happen on my 1st run of the app, but on my 1st run i've only played 1 song. I want to export log, but didnt find app folder.

Other things noted might not related to this issue and could be potential issue:

• I've installed other alternatives of SimpMusic (not sure if this will effect or not)
• I've clicked a playlist and hit Download icon (showing downloading and shows got downloaded), but does not show any in my "Downloaded". After exit the app, the downloading notification is gone, but in app still show downloading (although seems nothing been downloaded). Please see below images

Expected behavior should not show toast

Screenshots see step 4

running on LDPlayer (Android emulator) App version: v0.2.2 CPU: 4 core RAM: 4096M root disabled Android 9