Unable To Log Into Old Picturespro Website

I get this error when trying to log into the old Pictures Pro website. I have a customer wanting to order prints and they cannot get into the galleries. Neither can I.

Warning: Use of undefined constant utf8_encode - assumed 'utf8_encode' (this will throw an Error in a future version of PHP) in /home/www/roughstockphotography.com/photocart/pc_inc/functions.core.php on line 224

Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /home/www/roughstockphotography.com/photocart/pc_inc/functions.core.php:9 Stack trace: #0 /home/www/roughstockphotography.com/photocart/pc_head.php(15): dbConnect(Array) #1 /home/www/roughstockphotography.com/photocart/pc_main.php(4): require('/home/www/rough...') #2 /home/www/roughstockphotography.com/photocart/index.php(3): include('/home/www/rough...') #3 {main} thrown in /home/www/roughstockphotography.com/photocart/pc_inc/functions.core.php on line 9

Thank you...Reed

Photo Cart is not compatible with whatever PHP version you are running. It was retired 9 years ago.

https://www.picturespro.com/support-forum/photo-cart/