Build a Website for our company

Hello there, Our company needs to hire a freelancer who can complete a web project for us. We have a theme already, but when we put the theme on wordpress the website is shown as blank and plain white on "Mozila browser" and it shows 500 error on "Google Chrome" browser. We are looking for a freelancer who have great experience and can get this issue solved as soon as possible. We also need the freelancer to start the work immediate and complete it as the earliest. We need a skilled freelancer for this project who is familiar with wordpress and themes and its codings. Please do not bid with a copy paste proposal. To know you have read the project description in full, please Write your proposal starting with "I can start immediately" and also link us to a similar project that you had done previously. What was the issue and how you got it solved. This seems to be a very simple task for a skilled developer. We don’t want to see you hired and then you search on google for solution even we can do that. We need a professional developer please..................................