Not working email field

Hi, the email field when someone make a donation is not showing. In the backend, if i add new custom filed in forms and i add new fields, when i save, the fields not save and not add. And in the frontend checkout only see the predefined fields, not the new fields and the email is not there. Is stupid because then you dont know who donate to the campaign. In admin reports you see list of donations but you dont know the user that makes the donation, because the fields not register (not name, not email, not adress…). And then if you click in view more invoice the page not working….

In the other hand, i found some other errors:
-Dont see in frontend terms & conditions in the campaign single
-The list of campaigns in carrusel not working, it is a console error (swiper):
-The gallery lightbox in project, not working properly
-I cant change the slug of dashboard page. If i change, logout button not working…

And other questions:
-Can i change the url of single page (now its fundraising/campaignname)?
-How can i translate the plugin to my language?
-Is there a pro version with other functionality like suscription payment or email notifications to admin when someone donate or create a campaign?

Thanks