data protection not completing

Hi after a notification from the unit - I replaced a drive with a new one. Two weeks later it is still flashing orange and after a few days the unit is stopped being mounted on the Mac computer (even after a computer restart and replugging). It is not visible in disk utility either.

any suggestions?

Alternatively what would happen if I eject the disk from the array.

hi are the lights still flashing?
also which drobo model do you have?