Paint bucket missing

My paintbucket has mysteriously dropped off my menu and I cannot seem to add it back in. I have been just pressing the “b” key to get it going but that doesn’t seem to be working anymore as it keeps selecting the eyedropper even though I am not pressing the alt key. How can I add it back to my standard toolbar without messing up my extensions? It does not seem to be floating anywhere off the page.

Try going to preferences and reset workspace.