try

src/HeartTrackAPI/Utils/AppBootstrap.cs

@@ -186,9 +186,7 @@ public class AppBootstrap(IConfiguration configuration)
         {
             var apiVersionDescriptionProvider = app.Services.GetRequiredService<IApiVersionDescriptionProvider>();
             app.UseSwagger();
-            app.UseSwaggerUI(c => {
-                c.SwaggerEndpoint($"./v1/swagger.json", "SapWeb v1");
-            });
+            app.UseSwaggerUI();
             app.MapSwagger();
 /*            app.UseSwaggerUI(options =>
             {