Fix a few bugs and add placeholderapi support

build.gradle

@@ -16,18 +16,19 @@ repositories {
         name = "sonatype"
         url = "https://oss.sonatype.org/content/groups/public/"
     }
+    maven {
+        url = "https://repo.extendedclip.com/releases/"
+    }
 }
 
 dependencies {
     compileOnly("io.papermc.paper:paper-api:1.20.1-R0.1-SNAPSHOT")
+    compileOnly("me.clip:placeholderapi:2.11.6")
 }
 
 tasks {
     runServer {
-        // Configure the Minecraft version for our task.
-        // This is the only required configuration besides applying the plugin.
-        // Your plugin's jar (or shadowJar if present) will be used automatically.
-        minecraftVersion("1.20")
+        minecraftVersion("1.20.1")
     }
 }