Dashboard tab NOT showing

I’ve been having problems with www.ads-software.com this past few days, and I’m wondering if I’m actually signed in.

Normally, when I go to my website Spun Stories, the Dashboard bar appears in the upper left corner. But this hasn’t happened recently. In order to edit, I have to type in spunstories.com/wp-admin.

The last straw happened about 30 minutes ago, when I wanted to preview an unpublished post and was denied access.

I looked for a place to log on and couldn’t find it. Please help!