Error when adding an iten to cart

Hello, I got this error when I put an item into the cart:

Warning: number_format() expects parameter 1 to be double, string given in /home/pensamen/public_html/wp-content/plugins/easy-digital-downloads/includes/formatting.php on line 44

I opened the formatting.php and changed the code to the following:

$amount = number_format((float)$amount, $decimals, '.', '' );

It seems it worked. Still need to do a few tests. If someone is facing the same problem, this might be a fix.

Btw, using Crowdfunding too, not only EDD.

https://wordpress.org/plugins/easy-digital-downloads/