Help Customizing new pages and Front page with illdy !!

I’m having problems with the them illdy.
I can’t change the yellow image background of the counter widget.
I can’t remove the label at the bottom of the website in the footer which says “theme: illdy” and I can’t add pages to the website that are customizable.
I can’t edit my about page to not be blank !

I want to be able to add another page and add widgets without being restricted to the functionality of it. I’m being driving crazy by the tedious repetition of finding a theme, trying to customize and then getting stopped by silly issues.

The website is:

Hey there,

I hope you are well today and thank you for your question.

Best regards,

I have companion installed and I’m running this version of php:
Running PHP version: 5.6.31

What should I do in order to solve my issues ?