WP 404 Error

I am getting a 404 error on my website after I click on a product.  I was told to change the permalink to Custom Structure

I created the permalink.  I still get the same error.  I also change the httpaccess file to
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
# END WordPress

I still have the same error.

Can someone help me? I am using the Aliplugin.
It also tried the sitemap.  Google has not crawled the page yet.
Miss TechieTech BloggerAsked:
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Terry WoodsIT GuruCommented:
If you're using a theme that has Theme Options, then try making a change in the options, saving it, then undoing the change and saving again.

Also, if you have a caching plugin, clear the cache. How to do that will vary by plugin.

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Miss TechieTech BloggerAuthor Commented:
I do not have a "Theme Options." I have also tried clearing the cache. No go with any of the attempted fixes.

Thanks very much for responding.
Terry WoodsIT GuruCommented:
Are you using a 3rd party theme? Sometimes themes are not written to be compatible with particular settings.
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Miss TechieTech BloggerAuthor Commented:
I am using the Aliplugin.  I am using the theme given by the plugin provider.
Miss TechieTech BloggerAuthor Commented:
The website is now fixed.  It was a permalink problem. Thanks.
Miss TechieTech BloggerAuthor Commented:
I am using a theme that comes with the Aliplugin.  I changed the theme.  I just started over. Really, there was basically nothing on my website.  Now, it seems to be doing fine.  Instead of resizing my logo myself, I got someone to do a logo in a particular size.  I am taking careful actions now so that I do not have that problem again. Thanks.
Miss TechieTech BloggerAuthor Commented:
It was permalinks and my cache! Thanks @Terry Woods.
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