public void setCustomSkullTexture(SkullMeta sm, String texture) {
  final URL url = SkinFile.getURLFromSkullBase64(texture);

  if (url != null) {
   final PlayerProfile profile = Bukkit.getServer().createPlayerProfile(UUID.randomUUID());

   profile.getTextures().setSkin(url);
   sm.setOwnerProfile(profile); // Line #564
  } else
   sm.setOwnerProfile(null);
}

[16:11:30] [Server thread/INFO]: Environment: Environment[accountsHost=https://api.mojang.com, sessionHost=https://sessionserver.mojang.com, servicesHost=https://api.minecraftservices.com, name=PROD]
[16:11:30] [Server thread/WARN]: java.lang.NullPointerException: Cannot invoke "String.isEmpty()" because the return value of "com.mojang.authlib.GameProfile.getName()" is null
[16:11:30] [Server thread/WARN]:        at net.minecraft.nbt.GameProfileSerializer.a(SourceFile:98)
[16:11:30] [Server thread/WARN]:        at org.bukkit.craftbukkit.v1_20_R2.inventory.CraftMetaSkull.setProfile(CraftMetaSkull.java:135)
[16:11:30] [Server thread/WARN]:        at org.bukkit.craftbukkit.v1_20_R2.inventory.CraftMetaSkull.setOwnerProfile(CraftMetaSkull.java:247)
[16:11:30] [Server thread/WARN]:        at de.marcely.bedwars.versions.R2_20.setCustomSkullTexture(R2_20.java:564)