Sensitive Directory Check issue

[Phriya]

Hi guys,

I've been using a shared web hosting for my WHMCS installation, now I've migrated to a VPS, transferred my installation successfully and everything is working fine.

Now, I'm getting this warning in the System Health Status:

Sensitive Directory Check
One or more sensitive directories are accessible from the web:

/vendor
Please refer to our Further Security Steps for information.

I'm 100% sure that the chmod for this directory is 755 and the content of the insider .htaccess is:
 

<IfModule !mod_authz_core.c>
    Order allow,deny
    Deny from all
</IfModule>

<IfModule mod_authz_core.c>
    Require all denied
</IfModule>

 

yet I'm getting this warning, and upon visiting the URL I'm getting 403 Forbidden, please help me fix this issue.