Content page – Listing page layout – Shortcodes

Hi

When I’m in, Listing Setup – Couston Fields uses Checkbox or Selection, and puts it into Listing Pag Layout, it does not appear correctly on the website.
For example:
I use Checkbox and check the box on Monday and Tuesday, on the website it comes out: “a: 3: {i: 0; s: 6:” Monday “; i: 1; s: 7:” Tuesday “; i: 2; s: 2 : “-“;} ”
The same happens when I use the Selection options.

Why does it do this?