There is no such thing as a cheap fix for an incredibly complex and proprietary device. You will have to pay a highly trained expert and hope they have stock left of the part.

Well the hardware fix would be replacing a likely rather expensive board, and more sensibly, separating the constant-write kind of load onto a separate block device, preferably something like a microSD matched with a significantly larger eMMC.

There could be a software update to slow or disable the log-like writing or at least warn when the reserved blocks were running low.