First I would try to see if you have an empty text box that overlays the content. If you do, you can rearrange the order. Sometimes it is difficult to make selections unless you first select the top most layer and right click to arrange to bottom. This depends on your text wrapping options which might need another solution.
You can remove overflow by breaking the link if you delete the 2nd text box that the overflow appears in. Then the original first text box will have overflow. You will either have to reduce the font size, resize the text box, or edit words out to make it fit on the text box you want.
It is like a puzzle sometimes.