diff --git a/.gitignore b/.gitignore
index d7d810d..09aae2a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -85,4 +85,9 @@ API/app.db-shm
 
 # Vite build output
 GUI/dist/
-wwwroot/
\ No newline at end of file
+wwwroot/
+
+# SQLite Datenbank-Dateien
+*.db
+*.db-shm
+*.db-wal
\ No newline at end of file
diff --git a/API/Program.cs b/API/Program.cs
index 628cc81..f3b5e7e 100644
--- a/API/Program.cs
+++ b/API/Program.cs
@@ -18,18 +18,19 @@ builder.Services.AddSwaggerGen();
 
 // Authentication
 builder.Services.AddAuthorization();
-builder.Services.AddAuthentication().AddCookie(IdentityConstants.ApplicationScheme);
+builder.Services.AddAuthentication()
+    .AddCookie(IdentityConstants.ApplicationScheme);
 
 builder.Services.AddIdentityCore<User>()
     .AddEntityFrameworkStores<ApplicationDbContext>()
     .AddApiEndpoints();
 
 // Database
-var postgreConnection = builder.Configuration.GetConnectionString("PostgresConnection");
-if (!string.IsNullOrEmpty(postgreConnection))
+var postgresConnection = builder.Configuration.GetConnectionString("PostgresConnection");
+if (!string.IsNullOrEmpty(postgresConnection))
 {
     // Nutze PostgresSQL
-    builder.Services.AddDbContext<ApplicationDbContext>(options => options.UseNpgsql(postgreConnection));
+    builder.Services.AddDbContext<ApplicationDbContext>(options => options.UseNpgsql(postgresConnection));
 }
 else
 {
@@ -64,7 +65,7 @@ app.UseDefaultFiles();
 app.UseStaticFiles();
 
 app.UseHttpsRedirection();
-
+app.UseAuthentication();
 app.UseAuthorization();
 
 // Map Auth Endpoints
diff --git a/API/app.db b/API/app.db
index ac5d8a8..2eb27a2 100644
Binary files a/API/app.db and b/API/app.db differ