Archives not working due to permalinks

This is my problem, go to this page https://www.markms.com/archives/ and on the sidebar it lists the archives by month/year (January 2006) and when I click on it, https://www.markms.com/01/2006/ , I get a custom 404.

If I type in the Address bar on any browser, https://www.markms.com/01/00/2006/ it works. Of course, this calls it to find posts in 01 (January), 00 (All dates in month), and 2006 (year).

My question is how can I fix this without altering my permalinks. I have people who bookmark posts and don’t want them getting 404s from a permalink alteration.

This is on WordPress 2.0, permalink custom structure … /%monthnum%/%day%/%year%/%postname%/

and my optional category base is empty.

PS: It has been like this for a long time, I just want to see if I can fix it. It’s no problem, but it is quite an annoyance.