diff --git a/proxy/src/main/java/com/glyart/authmevelocity/proxy/config/AuthMeConfig.java b/proxy/src/main/java/com/glyart/authmevelocity/proxy/config/AuthMeConfig.java
index 8528e51..87058ab 100644
--- a/proxy/src/main/java/com/glyart/authmevelocity/proxy/config/AuthMeConfig.java
+++ b/proxy/src/main/java/com/glyart/authmevelocity/proxy/config/AuthMeConfig.java
@@ -1,21 +1,24 @@
 package com.glyart.authmevelocity.proxy.config;
 
 import java.util.List;
+import java.util.Objects;
 import java.util.Set;
 
 import com.moandjiezana.toml.Toml;
 
+import org.jetbrains.annotations.NotNull;
+
 public final class AuthMeConfig {
     private final List<String> authServers;
     private final ServerOnLogin serverOnLogin;
     private final Commands commands;
     private final EnsureAuthServer ensure;
 
-    public AuthMeConfig(Toml toml){
-        this.authServers = toml.getList("authServers");
-        this.serverOnLogin = toml.getTable("SendOnLogin").to(ServerOnLogin.class);
-        this.commands = toml.getTable("Commands").to(Commands.class);
-        this.ensure = toml.getTable("EnsureAuthServer").to(EnsureAuthServer.class);
+    public AuthMeConfig(@NotNull Toml toml){
+        this.authServers = Objects.requireNonNull(toml.getList("authServers"), "the list of auth servers is not available, please check your configuration for any failure");
+        this.serverOnLogin = Objects.requireNonNull(toml.getTable("SendOnLogin"), "SendOnLogin options are not available, check your configuration").to(ServerOnLogin.class);
+        this.commands = Objects.requireNonNull(toml.getTable("Commands"), "Commands options are not available, check your configuration").to(Commands.class);
+        this.ensure = Objects.requireNonNull(toml.getTable("EnsureAuthServer"), "EnsureAuthServer options are not available, check your configuration").to(EnsureAuthServer.class);
     }
 
     public static class ServerOnLogin {
@@ -26,7 +29,7 @@ public final class AuthMeConfig {
             return this.sendToServerOnLogin;
         }
 
-        public List<String> getTeleportServers(){
+        public @NotNull List<String> getTeleportServers(){
             return this.teleportServers;
         }
     }
@@ -35,11 +38,11 @@ public final class AuthMeConfig {
         private Set<String> allowedCommands;
         private String blockedCommandMessage;
 
-        public Set<String> getAllowedCommands(){
+        public @NotNull Set<String> getAllowedCommands(){
             return this.allowedCommands;
         }
 
-        public String getBlockedMessage() {
+        public @NotNull String getBlockedMessage() {
             return this.blockedCommandMessage;
         }
     }
@@ -52,25 +55,25 @@ public final class AuthMeConfig {
             return this.ensureFirstServerIsAuthServer;
         }
 
-        public String getDisconnectMessage(){
+        public @NotNull String getDisconnectMessage(){
             return this.disconnectMessage;
         }
 
     }
 
-    public Commands getCommandsConfig(){
+    public @NotNull Commands getCommandsConfig(){
         return this.commands;
     }
 
-    public ServerOnLogin getToServerOptions(){
+    public @NotNull ServerOnLogin getToServerOptions(){
         return this.serverOnLogin;
     }
 
-    public EnsureAuthServer getEnsureOptions(){
+    public @NotNull EnsureAuthServer getEnsureOptions(){
         return this.ensure;
     }
 
-    public List<String> getAuthServers(){
+    public @NotNull List<String> getAuthServers(){
         return this.authServers;
     }
 }