Hi Werner,
Thanks for reporting this and welcome to the forum! 🙂
In the page source, the closing </html> tag appears multiple times – you can see this by typing view-source: before the URL. If there’s any content after the last </html> (like your links), HTProtect currently assumes it’s been injected – that’s why you’re getting the alert.
You can manually remove the extra </html> tags or wait for version 2.5.2. In that update, the last </html> will be treated as the end of the document, so these cases will be handled properly.
Alternatively, you can install the attached ZIP file now and let me know if everything works fine with it.
Cheers,
Pascal