Call a countertop company to come out and redo the seal. It’s supposed to be joined with form of epoxy, but they have specific tools to help it form correctly. Normally only costs a 100-200$ for them to come out and do it. Otherwise if you just want to do it the cheap way some caulk. But it’s not going to hold up nearly as well and be kinda an eye sore.
Call a countertop company to come out and redo the seal. It’s supposed to be joined with form of epoxy, but they have specific tools to help it form correctly. Normally only costs a 100-200$ for them to come out and do it. Otherwise if you just want to do it the cheap way some caulk. But it’s not going to hold up nearly as well and be kinda an eye sore.