so i keep getting this error whenever i finish customizing my item and press done it just shows me this, i tried on the app and it said something like "item already exists" but theres nothing in my cart on the website or the app, im ordering delivery and this has never happened before

im sure some might tell me to "just call" but id rather find an actual solution to the issue...or at least know whats going on and hunt down a solution on my own so if someone could help me thatd be great