2 problem with css and 1 ajax

2 PROBLEM CSS
1.original theme https://shop.tuttoufficiobrescia.it/shop-index.html
in this example from smarphone menu is ok and footer is ok

2.modify https://shop.tuttoufficiobrescia.it/
in this example from smarphone menu is NOT OK and footer is NOT OK

3.
PROBLEM NOT VISIBILE AND SCRIPTS IS EGUAL
CHECK OUT IS TRUE .bmp
https://shop.tuttoufficiobrescia.it/ NOT FUNZIONALITY
https://shop.franciacortaufficio.com FUNZIONALITY