Fix #423

app/src/main/kotlin/it/vfsfitvnm/vimusic/savers/ArtistSaver.kt

@@ -16,7 +16,7 @@ object ArtistSaver : Saver<Artist, List<Any?>> {
 
     override fun restore(value: List<Any?>): Artist = Artist(
         id = value[0] as String,
-        name = value[1] as String,
+        name = value[1] as String?,
         thumbnailUrl = value[2] as String?,
         info = value[3] as String?,
         timestamp = value[4] as Long?,

app/src/main/kotlin/it/vfsfitvnm/vimusic/utils/Utils.kt

@@ -83,7 +83,7 @@ val DetailedSong.asMediaItem: MediaItem
 fun String?.thumbnail(size: Int): String? {
     return when {
         this?.startsWith("https://lh3.googleusercontent.com") == true -> "$this-w$size-h$size"
-        this?.startsWith("https://yt3.ggpht.com") == true -> "$this-s$size"
+        this?.startsWith("https://yt3.ggpht.com") == true -> "$this-w$size-h$size-s$size"
         else -> this
     }
 }