I'm using FreshRSS version 1.10.0 and I'm using a configuration where FreshRSS is available on url http://example.org/rss/ and where

>ls -l /var/www/example.org/rss
lrwxrwxrwx 1 root root 33 mars   1 22:51 /var/www/example.org/rss -> /path/to/FreshRSS-1.10.0/p/

When I got to FreshRSS configuration web interface, I can see that the displayed API url (for information) is https://example.org/rss/i/api/ but in fact the working url is https://example.org/rss/api/greader.php.

As you can see, FreshRSS is adding an i in the url, it shouldn't.