Can not enter admin area

[carlastreckwall]

After Wordpress was updated and I just checked in on my website under construction I can no longer get access to my admin area. I already tried to deactivate "themes" and "plugins" on my ftp but keep having the same error: "Deprecated: Function get_magic_quotes_gpc() is deprecated in…" since I can not enter the admin area I can also not see if lay theme is not updated correctly. Any ideas?

http://www.carlastreckwall.de/wp-login.php

[Richard]

Dear @carlastreckwall

Are you able to update your php version within your Hosting Platform?

https://wordpress.org/support/update-php/

Best
Richard