I was opening Old Box of Ornaments and got this error. The box opened fine and I got ornaments, so it isn't urgent or anything, just something to look into eventually. FF 57, windows 10, everything up to date.

Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 Warning: A non-numeric value encountered in /var/app/current/item.php(1177) : eval()'d code on line 18 You open the box and find: