Can't login admin and sign up anymore?

I just installed new vshare script.
But I can't login to admin account and can't sign up as any users.

Can you help me?



vShare Youtube Clone installation completed successfully.
You can login to vShare admin area at:

vShare Admin

Username : admin
Password : buyscripts

You must change default admin password by logging into admin control panel.

Test User Account

Your Site Name - Share Your Videos

Username : vshare
Password : 23583285

You must delete the "install" folder now. Also chmod 755 include/config.php

sorry, i got it now.
I wrongly set the session of php setting.