java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String
        at cn.nukkit.utils.ConfigSection.<init>(ConfigSection.java:42) ~[server.jar:?]        at cn.nukkit.utils.ConfigSection.<init>(ConfigSection.java:40) ~[server.jar:?]        at cn.nukkit.utils.ConfigSection.<init>(ConfigSection.java:40) ~[server.jar:?]        at cn.nukkit.utils.Config.parseContent(Config.java:543) ~[server.jar:?]
        at cn.nukkit.utils.Config.load(Config.java:154) ~[server.jar:?]
        at cn.nukkit.utils.Config.<init>(Config.java:95) ~[server.jar:?]
        at cn.nukkit.utils.Config.<init>(Config.java:87) ~[server.jar:?]
        at server.Utils.getPlayerConfig(Utils.java:208) ~[?:?]
        at server.Utils.getPlayerInventoryContents(Utils.java:22) ~[?:?]
        at server.Events.EventManager.lambda$onJoin$0(EventManager.java:160) ~[?:?]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_221]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_221]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_221]
> Exception in thread "Nukkit Asynchronous Task Handler #1" java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String
        at cn.nukkit.utils.ConfigSection.<init>(ConfigSection.java:42)
        at cn.nukkit.utils.ConfigSection.<init>(ConfigSection.java:40)
        at cn.nukkit.utils.ConfigSection.<init>(ConfigSection.java:40)
        at cn.nukkit.utils.Config.parseContent(Config.java:543)
        at cn.nukkit.utils.Config.load(Config.java:154)
        at cn.nukkit.utils.Config.<init>(Config.java:95)
        at cn.nukkit.utils.Config.<init>(Config.java:87)
        at server.Utils.getPlayerConfig(Utils.java:208)
        at server.Utils.getPlayerInventoryContents(Utils.java:22)
        at server.Events.EventManager.lambda$onJoin$0(EventManager.java:160)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)