Make some edits on my Wordpress site

I am having a few errors on my existing site, and I need someone on hand with great coding knowledge and who can work extremely fast to help me fix these issues.

The site is not live at the moment but can be accessed through the backend which I will provide.

I stress, that I need someone who can dedicate a bit of time today and possibly tomorrow and can work really fast following clear instructions. Great coding skills are essential.

Please be available to start immediately, as we need the site launched asap.