The “Footer” area can be changed via Theme Settings -> Footer – > Footer content. In case, if your footer was built through the HTML Block, select there the “HTML Block” content: https://prnt.sc/RX0ObDXAF84Y
In case, if you want to leave the Footer through widgets, please navigate to Appearance -> Widgets -> then edit Footer’s columns: https://prnt.sc/FCF0a0hUFChc