diff --git a/src/Application.ts b/src/Application.ts
index 49793f5..9db4fe7 100644
--- a/src/Application.ts
+++ b/src/Application.ts
@@ -18,7 +18,7 @@ import Extendable, {MissingComponentError} from "./Extendable.js";
 import {BadRequestError, HttpError, NotFoundHttpError, ServerError, ServiceUnavailableHttpError} from "./HttpError.js";
 import {logger, loggingContextMiddleware} from "./Logger.js";
 import SecurityError from "./SecurityError.js";
-import {doesFileExist, Type} from "./Utils.js";
+import {doesFileExist, Type, WrappingError} from "./Utils.js";
 import WebSocketListener from "./WebSocketListener.js";
 import TemplateError = nunjucks.lib.TemplateError;
 import AppLocalsCoreComponents from "./components/core/AppLocalsCoreComponents.js";
@@ -145,6 +145,11 @@ export default abstract class Application implements Extendable<ApplicationCompo
         app.use((err: unknown, req: Request, res: Response, next: NextFunction) => {
             if (res.headersSent) return next(err);
 
+            logger.debug(err);
+            if (err instanceof WrappingError) {
+                logger.debug("-> Caused by", err.cause);
+            }
+
             // Transform single validation errors into a validation bag for convenience
             if (err instanceof ValidationError) {
                 const bag = new ValidationBag();