Error after migration to Site Ground

[RealRomance]

Migrated site to Site Ground. All posts and pages are having some error with Author.

I contacted hosting provider who said

It appears that for some reason the following function:

get_the_author()

is not defined in the website’s files and when your theme is executing the script calling that function it is generating the reported issue.

May I kindly ask you to contact the vendors of the theme that you are using and ask them for more information regarding this.

[rad]

Hi Alen,

Thanks for reaching out.

Looks like the migration is incomplete or corrupted, I recommend remigrating it again.

And the get_the_author() is not part of the theme (though yes, theme and plugin could call it), it’s part of Wordpress core and should be available https://codex.wordpress.org/Function_Reference/get_the_author

This means your Wordpress core itself is causing the issue and maybe the file transter failed.

Thanks!