hi
Hi, there.  How can I help you?
I'm having an issue adding items to my cart
Okay, I can give you some suggestions to troubleshoot that.
okay
Try refreshing the page and see if that helps.

Did that help?  If not, then try logging out of your account and then log back in.
didnt help
See if the item is Out-of-Stock. Check the bottom left-hand side of the product page.
My bad. The item is out of stock didn't notice
That's okay, it happens a lot.  Can I do anything else for you?
That's all. Thanks
Have a great day!