[xwiki-users] Missing Edit button in XWiki 's sandbox test page 1

Hi there, I,ve installed the XWIKI on my machine and started the webapp. Then went to Sandbox's test page 1: http://localhost:8080/xwiki/bin/view/Sandbox/TestPage1 There it is written that i have to click on the 'Edit' button but I DONT SEE ANY BUTTON at all. Why is that? What's the problem? Thank you!