Change the colour on an invoice

On the choose invoice template it will not allow me to change the colour of the print on the invoice.

Hi, I'm able to change the template colour from
Settings > Invoice > Template : Choose invoice template > Colour

https://drive.google.com/file/d/1xswU8jILPbAqKbvEf2LrYDRhAGFGhMF6

You can try access to your system from Google Chrome, right click the page and select "Inspect" and go to Console tab to check if any error.
You will need to fix the error from your web server if any.