1hillthread

I adjusted the size of my photo to “medium”.
My only problem is that the white background behind the photo did not reaize. It stayed small as though I had chosen the “Square” size in the admin panel. Ca I change the white background to match the “medium” size of the photo? If not, can I remove the white background square altogether?

thanks.

Fatal error in my contact form 7 causing my site to crash. When I type in my web address, I get this message.

Fatal error: Call to undefined function plugin_dir_path() in /home8/bonnemaf/public_html/hillthread/wp-content/plugins/wp-contact-form/wp-contactform.php on line 19

My site address is https://www.hillthread.com
I cannot get any page of my site to open. I get this same message no matter which page I try to open.

But I also get the same message when I try to go to my site admin.

I type in this address https://www.hillthread.com/wp-admin and I get the same message:

Fatal error: Call to undefined function plugin_dir_path() in /home8/bonnemaf/public_html/hillthread/wp-content/plugins/wp-contact-form/wp-contactform.php on line 19

Any ideas on what to do??