Throw error exception properly

src/webui/webapplication.cpp

@@ -155,11 +155,7 @@ void WebApplication::sendWebUIFile()
     if (m_isAltUIUsed)
     {
         if (!Utils::Fs::isRegularFile(localPath))
-        {
+            throw InternalServerErrorHTTPError(tr("Unacceptable file type, only regular file is allowed."));
-            status(500, u"Internal Server Error"_qs);
-            print(tr("Unacceptable file type, only regular file is allowed."), Http::CONTENT_TYPE_TXT);
-            return;
-        }
 
         QFileInfo fileInfo {localPath.data()};
         while (Path(fileInfo.filePath()) != m_rootFolder)