Home Page Title & Tag adding a "%" when generating the home page

Hi,

I have noticed that on google results for my website a "%" is appearing in the title/description.

My Site Title = "Digital Apprenticeship Training Provider - London & Essex"
My Tag Line = "Digital Marketing / Marketer | Junior Content Producer | Marketing Junior | Marketing Assistant"

Can you tell me why the home page generating a "%" in between the two meta or how I can remove it?

The generated code looks like this for the page....

<meta property="og:title" content="Digital Apprenticeship Training Provider - London & Essex % - Digital Marketing / Marketer | Junior Content Producer | Marketing Junior | Marketing Assistant">

Thanks
Eddy