It seems like you have customized the theme using child theme( Medical Circle Child). Please do contact the developer of child theme to fix this issue.
If you activate the parent theme( Medical Circle ) the issues should solve
Thanks for getting back to me! Indeed parent theme does not have this issue.
I used child theme as a standard WordPress practice to modify files and be able to update the theme without losing changes. Currently, child theme only overrides footer.php and acme-gallery.php files.
If you suspect the reason why is that happening with the header menu, i would gladly hear it. Either way, thank you again for your help.