Footnote is "under" widgets

Hi again (yea, I am back :-D) I have problem with latest footnotes plugin version, in my page (https://www.fyzika.klusik.cz) I have an article, where footnotes are displayed “under” widgets in widget area ??

https://www.dark-net.cz/files/footnotes%20bug.png

Thank you and have a nice day ?? ??

https://www.ads-software.com/plugins/footnotes/