Sitle Title missing from page header

Hi,

I am using a child theme of Maskitto Light – moved my site to a new host (creditonbandb.co.uk) so had to copy across all files and import the database to the new database on the host. Everything seems to have come through all OK – but the Site Title attribute isn’t showing on the browser tabs i.e. The site title is “Hillside Bed & Breakfast” – previously, the breakfast page would show as “Breakfast | Hillside Bed & Breakfast”. However since the move, it shows as “Breakfast | “

The home page displays creditonbandb.co.uk rather than the site title. I’ve tried changing the Site Title in Appearance – Customize, and in Setting – General, but it just isn’t showing it.

When I activate the parent theme as the live theme, I am presented with the following error:

Notice: post_permalink is deprecated since version 4.4! Use get_permalink() instead. in /***/***/public_html/wp-includes/functions.php on line 3568

Warning: Cannot modify header information – headers already sent by (output started at /***/***/public_html/wp-includes/functions.php:3568) in /***/***/public_html/wp-includes/pluggable.php on line 1228

I’m at a bit of a loss as to what I need to change.