Can't delete a forum from the Forums Webhome Livetable

Steps to reproduce:

1. Create a new forum as Admin or simple user
2. As Admin go to the Forums WebHome http://localhost:8080/xwiki/bin/view/Forums/
3. From the LiveTable click on Delete for the newly created forum
4. Click on Yes

Expected results: The forum is deleted.

Actual results: The forum is not deleted and a message in red appears "The forum could not be deletedUnauthorized".
In the Console I get:

2017-09-28 16:10:03,164 [http://localhost:8080/xwiki/bin/get/ForumCode/Actions?outputSyntax=plain] WARN  o.x.c.i.DefaultCSRFToken       - CSRFToken: Secret token verification failed, token: "wQQETBRB96XmunFVQHyQtQ", stored token: "RKAZJjGxCEiwYYsF5Upv9g"

NOTE: I can delete the forum as Admin only as a normal page: click on the Forum > More Actions > Delete > Affect children and Delete