//Error
[18:35:49] [Server thread/ERROR]: Error occurred while enabling TORDR-Bans v0.1 (Is it up to date?)
java.lang.NullPointerException
	at de.mlh1100.Bans.Bans.onEnable(Bans.java:54) ~[?:?]
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) ~[Spigot.jar:git-Spigot-e4d4710-e1ebe52]
	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:340) [Spigot.jar:git-Spigot-e4d4710-e1ebe52]
	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [Spigot.jar:git-Spigot-e4d4710-e1ebe52]
	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugin(CraftServer.java:357) [Spigot.jar:git-Spigot-e4d4710-e1ebe52]
	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.enablePlugins(CraftServer.java:317) [Spigot.jar:git-Spigot-e4d4710-e1ebe52]
	at net.minecraft.server.v1_8_R3.MinecraftServer.s(MinecraftServer.java:414) [Spigot.jar:git-Spigot-e4d4710-e1ebe52]
	at net.minecraft.server.v1_8_R3.MinecraftServer.k(MinecraftServer.java:378) [Spigot.jar:git-Spigot-e4d4710-e1ebe52]
	at net.minecraft.server.v1_8_R3.MinecraftServer.a(MinecraftServer.java:333) [Spigot.jar:git-Spigot-e4d4710-e1ebe52]
	at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:263) [Spigot.jar:git-Spigot-e4d4710-e1ebe52]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:525) [Spigot.jar:git-Spigot-e4d4710-e1ebe52]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_101]
________________________________________________________________________________________________________________________________________
//Code

void connect() {

        if(!isConnected) {
            try {

                con = DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/Bans?autoReconnect=true", username, password);
                createTableIfNotExists();
                Bukkit.getConsoleSender().sendMessage("§7[§bMySQL§7] §aVerbindung hergestellt");
                isConnected = true;
            } catch (SQLException ex) {
                System.out.println("§7[§bMySQL§7] §4Verbindung fehlgeschlagen! Fehler: " + ex.getMessage());
                ex.printStackTrace();
                isConnected = false;
            }
        }

    }