No puedo abrir el cpanel ni mi página

Hola, ayer cambiando unas cosas me metí en Ajustes-General y cambie la URL de la página, esto me dió error de inmediato y a partir de ese momento no he podido abrirla. He buscado varias soluciones y las he aplicado, y al hacerlo ahora me da estos errores:
Warning: Cannot modify header information – headers already sent by (output started at /home/paty1112/public_html/wp-includes/functions.php:1) in /home/paty1112/public_html/wp-content/plugins/wp-super-cache/wp-cache-phase2.php on line 62

Warning: Cannot modify header information – headers already sent by (output started at /home/paty1112/public_html/wp-includes/functions.php:1) in /home/paty1112/public_html/wp-includes/pluggable.php on line 955

Warning: Cannot modify header information – headers already sent by (output started at /home/paty1112/public_html/wp-includes/functions.php:1) in /home/paty1112/public_html/wp-includes/pluggable.php on line 956

Warning: Cannot modify header information – headers already sent by (output started at /home/paty1112/public_html/wp-includes/functions.php:1) in /home/paty1112/public_html/wp-includes/pluggable.php on line 957

Warning: Cannot modify header information – headers already sent by (output started at /home/paty1112/public_html/wp-includes/functions.php:1) in /home/paty1112/public_html/wp-includes/pluggable.php on line 959

Warning: Cannot modify header information – headers already sent by (output started at /home/paty1112/public_html/wp-includes/functions.php:1) in /home/paty1112/public_html/wp-content/deleteme.54ba666b9896409bb490b82991494270.php(16) : eval()’d code on line 1

No tengo mucha idea de nada de esto, y ya llevaba el blog casi terminado para seguir subiendo entradas e información, estoy desesperada porque no tengo idea de que hacer.
Agradecería mucho vuestra ayuda!!!!
Saludos y gracias de antemano