Prestashop installation "error 500"

Hello everyone,

I am MyersKimb. I have a problem installing the last version of Prestashop in localhost in a Mac Book pro. I didn´t have any problem with Windows but now I´m totally stucked and don´t know why. I have installed Xampp, created the database with phpmyadmin and activate the control panel Then I have downloaded the last version of Prestahop. I have copied the folder inside xampp´s folder htdocs. The route will be the following one: xampp/htdocs/prestashop/install. However, when I tried to install prestashop I´m getting error.I have looked for some Tutoring Solution Video but that didn't helped me. I don´t think that there´s a problem with routes. I have tried to download other programmes in localhost in the same laptop and I´m getting the same error ? Any idea?

Any help would be appreciated!!!

Thank you.