Strange Blue button on timeline facebook

I just updated my Xperia Z3 to Lollipop, afterward I did a factory reset and reconfigured my apps and settings. Everything works like a charm expect my Facebook app. Facebook is showing a Blue Button in the lower right corner. When I click on the button it gives me the following options.

Check in
Share a Photo
Make a Photo
post a new message

Does anyone know how to get rid of this button? My girlfriend also has a Z3 compact updated to Lollipop without factory reset and her phone doesn 't have the button.

Welcome to Android Central! My Facebook app (which is up to date) on my Nexus 5 has it as a blue bar along the bottom, so a blue button at the lower right would actually be preferable for me!

Thanks for the warm welcome! My facebook is up to date running 32.0.0.23.15 my girlfriend is also running lollipop and she has the same facebook version on her Z3 Compact. She has the blue bar along the bottum which I really would like back...

This is how my timeline looks like
Attachment 174755