404 page not found entries in the error log file

Yes you maybe right I guess. But I do have more sub folders in assets e.g. assets/css, assets/bootstrap etc which are being included in the header but I never get any error log entries for them?

I have the following code in my htaccess. Do you know how to allow assets folder and its all sub-folders? I will test. Thank you.

Code:

<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteBase /

    RewriteCond %{REQUEST_URI} ^system.*
    RewriteRule ^(.*)$ /index.php?/$1 [L]
    
    RewriteCond %{REQUEST_URI} ^application.*
    RewriteRule ^(.*)$ /index.php?/$1 [L]

    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule ^(.*)$ index.php?/$1 [L]

</IfModule>