Hello,
1- This needs to be looked upon on your Site. Kindly, please share your Site WP-ADMIN Login details in the Private Content field so that we can check this concern on your Site and help you out accordingly.
2- For the Footer Menu Items font size decreasing, please try using the below Custom CSS code and paste it to Dashboard >> Theme Settings >> Custom CSS >> Global CSS section:
.footer-column .footer-widget .menu .menu-item { font-size: 0.8em !important; }
In this CSS, you can change the value of the font-size property to your choice of value.
Best Regards