Hello,
1) Yes, you can. Go to Pages > edit home page > Scroll down to page options > disable breadcrumbs http://prntscr.com/sb6vqm
2) To translate the account go to Loco Translate > Plugins > XStore Core plugin > create translation if you have not created it yet and translate the missing strings https://xstore.helpscoutdocs.com/article/30-base-theme-translation To translate the shop page sidebar content go to Appearance > Widgets > add the Product categories widget to shop sidebar and edit the widget title.
3) Edit the Theme Options > Custom CSS and remove the following custom code
.page-heading .title :before {
content: url(https://xstore.8theme.com/demos/burger/wp-content/uploads/sites/53/2017/10/left-title.png);
position: relative;
top: 21px;
}
.page-heading .title :after {
top: 29px;
position: relative;
content: url(https://xstore.8theme.com/demos/burger/wp-content/uploads/sites/53/2017/10/right-title.png);
}
4), 5) By additional customization only. Can’t check your site and problems because of maintenance mode to give you custom code. Provide us with temporary WP Dashbaord access, please.
Regards