On the website www.hansimnetz.ch the hamburger menu (top right) has not been working for some time. When I click on it, it opens and closes automatically.
What I have tried so far:
Plugins deactivate* d
created new menus
updated Wordpress to 5.7.1 (newer does not work due to PHP version on the server)
Does anyone have an advice? Thanks in advance
Curabo