Comments error

Just translated my Dutch page in English.
Now the comments that were already under the dutch article give an error message under the english version:
Warning: Invalid CRT parameters detected in C:\domains\easygoingrotterdam.nl\wwwroot\wp-content\plugins\qtranslate-x\qtranslate_core.php on line 735
You can see it here:
http://www.easygoingrotterdam.nl/en/free-city-walks-rotterdam/

How can I fix this?

Thanks!