Category link not working

You’ll need to share the templates for us to check.

What pages of the template do you need?

Index.php, Category.php

Bu do not post them here ??
Use https://pastebin.com/

Thanks. I went to double-check category.php to see if I had missed something and for some reason it never finished uploading to the server. Sorry to bother you.

Some of my category list links work fine, a few do not — just appears a blank page. The funny thing is that there isn’t a homogeneous behaviour, i.e., normally all category list links would appear or vice-versa.
I am using WP 1.5.1.1.
Any idea? Thks!

Further to the above, hereunder 2 examples:

https://www.garfos.letrascomgarfos.net/archives/category/blogosfera/coolsites/

This one lists all posts within the category.

https://www.garfos.letrascomgarfos.net/archives/category/geral/

The second URI doesn?′t! It seems that the database simply did not get the data related to this last category (or something like that?). Really funny!