Cannot login to wordpress site

I was working on my site earlier, and I noticed things were loading weird, so logged out of everything and restarted the computer. Now I cannot login to the admin. Whenever I try, the page goes all white and stays at https://gandyprinters.com/wordpress/wp-login.php. I have no idea what to do. I changed the name on the plugin folder on my server in case it was a plugin interfering with something, but that didn’t do it.

I really need some assistance.

Thank you,
Rebecca