run the installation prob

well , after i finished the first step about database name etc....and i get this msg : All right, sparky! You’ve made it through this part of the installation. WordPress can now communicate with your database. If you are ready, time now to…

Run the installation and i press it ....then It redirect me again and again to the first part of the installation ...to the welcome part I guess i made a mistake somewhere ....but where ?

Thank you !