Not working on ghost 5

[barto28]

Hi

when trying to install the theme on ghost 5 I got the following error :

Replace {{@blog}} with {{@site}}
The usage of {{@blog}} is no longer supported and should be replaced with{{@site}}.
Find more information about the @site property here.

Affected files:
amp.hbs: Please remove or replace {{@blog}} from this template
partials/theme_footer.hbs: Please remove or replace {{@blog}} from this template
partials/theme_header.hbs: Please remove or replace {{@blog}} from this template
subscribe.hbs: Please remove or replace {{@blog}} from this template

Replace {{lang}} with {{@site.locale}}
The usage of {{lang}} is no longer supported and should be replaced with {{@site.locale}}.
Find more information about the @site.locale property here.

Affected files:
default.hbs: Please remove or replace {{lang}} from this template
subscribe.hbs: Please remove or replace {{lang}} from this template

Is there any chance to get this fixed ?

Thank you very much.