I bought Classico theme some time ago and so far it has been an excellent product.
However, for some reason I can’t open my checkout page (which I have set via WooCommerce). The link in the cart icon does not work nor does the link in the cart page.
On the Checkout page, it says that there is an invalid argument on a file. Here is an image of the message :
I have added the SFTP information.
I hope you can help me with my issue.