diff --git a/src/de/steamwar/bungeecore/ErrorLogger.java b/src/de/steamwar/bungeecore/ErrorLogger.java
index 12304db2..39db043e 100644
--- a/src/de/steamwar/bungeecore/ErrorLogger.java
+++ b/src/de/steamwar/bungeecore/ErrorLogger.java
@@ -3,6 +3,7 @@ package de.steamwar.bungeecore;
 import de.steamwar.bungeecore.sql.SWException;
 import net.md_5.bungee.api.ProxyServer;
 
+import java.text.MessageFormat;
 import java.util.logging.Handler;
 import java.util.logging.Level;
 import java.util.logging.LogRecord;
@@ -35,7 +36,7 @@ public class ErrorLogger extends Handler {
             thrown = thrown.getCause();
         }
 
-        SWException.log("Bungee", record.getMessage(), stacktrace.toString());
+        SWException.log("Bungee", MessageFormat.format(record.getMessage(), record.getParameters()), stacktrace.toString());
     }
 
     @Override
diff --git a/src/de/steamwar/bungeecore/sql/SteamwarUser.java b/src/de/steamwar/bungeecore/sql/SteamwarUser.java
index 2447fd8c..6e01fffe 100644
--- a/src/de/steamwar/bungeecore/sql/SteamwarUser.java
+++ b/src/de/steamwar/bungeecore/sql/SteamwarUser.java
@@ -47,7 +47,14 @@ public class SteamwarUser {
     }
 
     public static SteamwarUser getOrCreate(PendingConnection connection){
-        SteamwarUser user = SteamwarUser.get(connection.getUniqueId());
+        SteamwarUser user;
+        try{
+            user = SteamwarUser.get(connection.getUniqueId());
+        }catch(SecurityException e){
+            //Exception only thrown for first time users
+            //Reason: java.sql.SQLException: Invalid utf8mb4 character string: 'ACED00'
+            user = null;
+        }
 
         if(user != null){
             String userName = connection.getName();
@@ -75,7 +82,7 @@ public class SteamwarUser {
     public static SteamwarUser get(UUID uuid){
         if(usersByUUID.containsKey(uuid))
             return usersByUUID.get(uuid);
-        return dbInit(SQL.select("SELECT * FROM UserData WHERE UUID = '" + uuid.toString() + "'")); //Fix getOrCreate exceptions for first time users
+        return dbInit(SQL.select("SELECT * FROM UserData WHERE UUID = ?", uuid.toString()));
     }
 
     public static SteamwarUser get(ProxiedPlayer player){