FabledSkyblock 2.0.6 console error - /is (structure loading

> [16:09:55 WARN]: java.lang.IllegalArgumentException: Illegal base64 character 1f
> [16:09:55 WARN]: at java.util.Base64$Decoder.decode0(Base64.java:714)
> [16:09:55 WARN]: at java.util.Base64$Decoder.decode(Base64.java:526)
> [16:09:55 WARN]: at com.songoda.skyblock.utils.structure.StructureUtil.loadStructure(StructureUtil.java:130)
> [16:09:55 WARN]: at com.songoda.skyblock.island.IslandManager.pasteStructure(IslandManager.java:795)
> [16:09:55 WARN]: at com.songoda.skyblock.island.IslandManager.prepareIsland(IslandManager.java:712)
> [16:09:55 WARN]: at com.songoda.skyblock.island.IslandManager.createIsland(IslandManager.java:165)
> [16:09:55 WARN]: at com.songoda.skyblock.menus.Creator.lambda$null$1(Creator.java:194)
> [16:09:55 WARN]: at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftTask.run(CraftTask.java:76)
> [16:09:55 WARN]: at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:52)
> [16:09:55 WARN]: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> [16:09:55 WARN]: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> [16:09:55 WARN]: at java.lang.Thread.run(Thread.java:748)