Problem with PHP Nuke and WordPress on the same website

Hi all,

In 2011 we switched our websites from PHP-Nuke to WordPress. To keep the 1,500 existing PHP-Nuke articles available, I installed WordPress in a subfolder, but with the urls pointing to the root directory and with a WordPress homepage (/index.html/). PHP-Nuke only runs from the root directory.

For several years the two programs coexisted like ebony and ivory, until a while ago PHP-Nuke was not working anymore. Our hosting company wrote that the reason would be that they had updated their software, and our PHP-Nuke also needed to be updated to work again.
I finally did that update, but probably not correctly: the WordPress pages are no longer visible! Any click on a WordPress link leads to the index.php page in PHP-Nuke, despite showing the proper url in the address bar. How can I get WordPress visible again? (I can still log in on the backend and the pages are still there.)

I know the best option would be to import all PHP-nuke posts into WordPress, but there seems no easy way to do this, and also to keep the internal and external links to the original posts intact.
Here is an example page from my site, showing the PHP indexpage in steda of the WordPress page: https://www.israel-palestina.info/weblinks-html/

Can anyone help please?

Wouter from the Netherlands

PS: I also looked for a PHP-Nuke forum to post this question, but nukeforums.com has not had a post or comment since 2 years…