Modify submit button on simple website (PHP)

I moved my website to a new host and setup all the files and the mysql database. The website has a couple of simple forms that save to a mysql database and email when the submit button is pushed. For some reason the email is not being sent on the new server and the data is not being written to the database. It’s probably something simple I’ve overlooked. I need to have the php form fixed so it writes to the database and sends an email like it does on my old server (still up and running). The winning bidder will be on the low end of the budget range. If you work quickly I may have additional work for you to customize a few fields in the current forms and create a few more forms.