The linking on the bottom of the page of the calendar to go

The linking on the bottom of the page of the calendar to go to the month returns a 404 error. Wordpress is not installed in the root but in a wordpress folder. HOWEVER, the plugin is adding the wordpress/ into the URL and it is causing the error. If I take the same link and remove the "wordpress/" from the URL it works. Where can I change that? Also is there no way to add PREV and NEXT to the top of the calendar?