Permalink and database error

What theme are you using?
Do you run any category-related plugins?
Does this happen on single-post pages, or other types?

Server: Linux/Apache
To make it simple I used:
/index.php/archive/%year%/%postname%/
/index.php/category
without .htaccess

have tested using my own theme and wordpress default. The error appear on all post and categories.

Plugins:
Include page 1.0
Last Post Since 1.0
Static Front Page 1.0.2

Solved!

See the solution here:
https://blog.taragana.com/index.php/archive/wordpress-tip-on-permalink-options/

Specifically check the comments section in the link above starting here.

I have a similar problem and the solution identified in the link doesn’t work for me because I don’t have any reference to

the_category()

in my theme.

I’ve set up my permalinks structure as follows:

/index.php/%year%/%monthnum%/%day%/%postname%/

which I suppose is fine, but:

1. I can only use my categories pull-down menu on my main page in order to correctly go to a category (example: https://magazine.interracialweb.com/index.php ) and

2. Get a 404 not found error when I try to use the pull down menu for my blog categories everywhere else (example: https://magazine.interracialweb.com/index.php/2005/12/05/beautiful-multicultural-babies-cookies/ ).

The pull down menu code I’m using is directly from the codex:

<form action=”<?php echo $PHP_SELF ?>” method=”get”>
<p style=”padding: 0px; margin: 0px;”><?php dropdown_cats(); ?>
<input type=”submit” name=”submit” value=”Go” />
</form>

What do I need to do to fix this?