Footnote reference problem (no match to footnote)

Hello,

I have a problem with the footnote reference. It shows me that the superscript at the end of the paragraph doesn't have the font as the text has so the footnote reference is a small red-ish selection of an box with an inside.

I tried using paragraph styles and changing the font, but it doesn't work. Also, I found nothing helpful to Document Footnote Option box.

The other problem is that because the footnote reference is 'missing' or 'unknown', the text at the bottom of the page it jumps to another footnote number and makes a mess down there.

The only option for this is to do it manualy or is it there another way?

Thank you.