Hello, Peter,
Thank you for contacting us and for using XStore.
1/ Please update the theme and plugins, then Sync the translation https://www.8theme.com/documentation/xstore/theme-translation/base-theme-translation/
If this doesn’t help, please provide us with FTP access, and we will check the issue more deeply.
2/ Theme Options > Header builder > delete Nesletter element https://prnt.sc/-tcb49_GLO5w
3/ We suggest that you go to Theme Options > Mobile panel > delete all default elements and add new ones from scratch.
Thank you for your cooperation and we look forward to hearing from you soon.
Kind Regards,
8theme team