OcStore 3.0.2.0 after installing SEO PRO, instead of category and products, a page with a 403 error is displayed. How to fix?

Question

opencart

Dear members of the forum, I am contacting you after two hours of trying to fix the problem) Please help) I

installed the Seo Pro modifier for the 3.x version on the engine. In oc_seo_url in the database, I added the necessary records with standard pages, the required language and the store were added everywhere. Created several test categories and gave them a URL in the SEO tab. Standard pages work flawlessly. But the trouble is with categories and goods.
When I click on the link,
/index.php?route=product/category&path=7
everything is fine! And when I follow the link of the form,
/test-category
it gives an error 403.
The .htaccess file is default. The storage folder is in the root folder, the site itself too.
Tried:
1) change in htaccess +FollowSymLinks to +Sym...Match
2) play with the switches in the system settings of the store in the "server" tab, while constantly deleting storage / cache /, updating modifiers after clearing the cache and updating the template
cache the type of SEO filling was unacceptable
4) look in the router code, maybe something is wrong, as a result, I got confused in the classes that always refer to each other.

In theory, the redirect in .htaccess works correctly, judging by the lines:

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !.*\.(ico|gif|jpg|jpeg|png|js|css)
RewriteRule ^([^?]*) index.php?_route_=$1 [L,QSA]

If not a file, not a directory/image/script/style, etc. then redirect to index.php. I don't know what could be wrong, so that url /index.php?route=product/category&path=7 would work but /test-categorynot

Answer 1

probably, the reason here is not in seo pro, but in the server settings, 403 is an access denied