diff --git a/src/main/java/de/hdm_stuttgart/battlearena/Model/DataStorage/Classes/Utilities/Parser.java b/src/main/java/de/hdm_stuttgart/battlearena/Model/DataStorage/Classes/Utilities/Parser.java
index c207fa9533c4bc37f72f4a6307fd455d6a92dccf..280cfe87f9eb179cb029abc6289aea12288e4b3c 100644
--- a/src/main/java/de/hdm_stuttgart/battlearena/Model/DataStorage/Classes/Utilities/Parser.java
+++ b/src/main/java/de/hdm_stuttgart/battlearena/Model/DataStorage/Classes/Utilities/Parser.java
@@ -32,7 +32,7 @@ public class Parser {
         Matcher mat = pat.matcher(username);
         boolean result = mat.find();
         if (result) {
-            throw new ParserException("Forbidden characters used! Only user letters A-Z or numbers 0-9 or symbols '-' or '_' !");
+            throw new ParserException("Forbidden characters used! Only use letters A-Z or numbers 0-9 or symbols '-' or '_' !");
         }
     }
 
@@ -51,7 +51,7 @@ public class Parser {
         Matcher mat = pat.matcher(password);
         boolean result = mat.find();
         if (result) {
-            throw new ParserException("Forbidden characters used! Only user letters A-Z or numbers 0-9 or symbols '-' or '_' !");
+            throw new ParserException("Forbidden characters used! Only use letters A-Z or numbers 0-9 or symbols '-' or '_' !");
         }
     }
 
@@ -70,7 +70,7 @@ public class Parser {
         Matcher mat = pat.matcher(mapName);
         boolean result = mat.find();
         if (result) {
-            throw new ParserException("Forbidden characters used! Only user letters A-Z or numbers 0-9 or symbols '-' or '_' !");
+            throw new ParserException("Forbidden characters used! Only use letters A-Z or numbers 0-9 or symbols '-' or '_' !");
         }
     }
 
diff --git a/src/test/java/de/hdm_stuttgart/battlearena/Model/DataStorage/Classes/Utilities/ParserTest.java b/src/test/java/de/hdm_stuttgart/battlearena/Model/DataStorage/Classes/Utilities/ParserTest.java
index 6129c434546c7100137b64db95527ecc335dc65c..980f00547b93750d9d884eadc70f113dd1a94fa4 100644
--- a/src/test/java/de/hdm_stuttgart/battlearena/Model/DataStorage/Classes/Utilities/ParserTest.java
+++ b/src/test/java/de/hdm_stuttgart/battlearena/Model/DataStorage/Classes/Utilities/ParserTest.java
@@ -26,7 +26,7 @@ class ParserTest {
         assertTrue(testMe.getMessage().contains("Username too long! Max length is 40 characters."));
 
         testMe = assertThrows(ParserException.class, () -> Parser.usernameValid("SELECT * FROM"));
-        assertTrue(testMe.getMessage().contains("Forbidden characters used! Only user letters A-Z or numbers 0-9 or symbols '-' or '_' !"));
+        assertTrue(testMe.getMessage().contains("Forbidden characters used! Only use letters A-Z or numbers 0-9 or symbols '-' or '_' !"));
     }
 
     @ParameterizedTest
@@ -46,7 +46,7 @@ class ParserTest {
         assertTrue(testMe.getMessage().contains("Password too long! Max length is 40 characters."));
 
         testMe = assertThrows(ParserException.class, () -> Parser.passwordValid("SELECT * FROM"));
-        assertTrue(testMe.getMessage().contains("Forbidden characters used! Only user letters A-Z or numbers 0-9 or symbols '-' or '_' !"));
+        assertTrue(testMe.getMessage().contains("Forbidden characters used! Only use letters A-Z or numbers 0-9 or symbols '-' or '_' !"));
     }
 
     @ParameterizedTest
@@ -66,7 +66,7 @@ class ParserTest {
         assertTrue(testMe.getMessage().contains("Map-Name too long! Max length is 30 characters."));
 
         testMe = assertThrows(ParserException.class, () -> Parser.mapNameValid("SELECT * FROM"));
-        assertTrue(testMe.getMessage().contains("Forbidden characters used! Only user letters A-Z or numbers 0-9 or symbols '-' or '_' !"));
+        assertTrue(testMe.getMessage().contains("Forbidden characters used! Only use letters A-Z or numbers 0-9 or symbols '-' or '_' !"));
     }
 
     @ParameterizedTest
@@ -232,10 +232,10 @@ class ParserTest {
 
     @Test
     void statsInvalid(){
-        ParserException testMe = assertThrows(ParserException.class, () -> Parser.playerStatsValid(new PlayerStatistics(-1, 0, 0, 0, 0, 0)));
+        ParserException testMe = assertThrows(ParserException.class, () -> Parser.playerStatsValid(new PlayerStatistics(0, -1, 0, 0, 0, 0)));
         assertTrue(testMe.getMessage().contains("Player statistics data corrupted - Minimum value for lost games is 0!"));
 
-        testMe = assertThrows(ParserException.class, () -> Parser.playerStatsValid(new PlayerStatistics(0, -1, 0, 0, 0, 0)));
+        testMe = assertThrows(ParserException.class, () -> Parser.playerStatsValid(new PlayerStatistics(-1, 0, 0, 0, 0, 0)));
         assertTrue(testMe.getMessage().contains("Player statistics data corrupted - Minimum value for won games is 0!"));
 
         testMe = assertThrows(ParserException.class, () -> Parser.playerStatsValid(new PlayerStatistics(0, 0, -1, 0, 0, 0)));