A quick search will lead you to a variety of resources that show you how to rectify a 403 error, which I would think in your case is a permissions issue.
How to fix 403 error in WordPress
Hope this helps.
]]>To test the htaccess file, simply access the file manager for your account and rename that file. If the 403 error goes away, then it was that file.
Plugins can cause an issue, but with a new install there are not usually any there. You can go into your hosting File Manager and rename the plugins folder found in the wp-content directory, just in case. If the 403 goes away after that, you know it was one of the plugins.
]]>Do you have access through the control panel from bluehost? Here’s a post from their FAQ about logging in through automated installers like mojo: https://my.bluehost.com/cgi/help/access_wordpress
Hope this helps.
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