Error in confirming partial refund offer

Description

Hi i recently opened a refund with PayPal on a purchase that never arrived and have been offered a partial refund from the seller, every time i try to accept this offer and confirm it the page buffers then states there’s a full page error, this happens each time i try to confirm and across multiple devices, what can i do to stop this? I’ve contacted PayPal multiple times and had nothing back, thank you