Editing an answer doesn't work

Editing an answer doesn't work by clicking on the green button, but if I manually enter the address (for ex. http://localhost:8080/xwiki/bin/edit/Forums_qeqe/TopicAnswer) I am able to modify the answer.

I've also noticed that manually entering http://localhost:8080/xwiki/bin/view/Forums_qeqe/TopicAnswer redirects me to http://localhost:8080/xwiki/bin/view/Forums_qeqe/Topic, the corresponding topic.