Unraid can't emulate two disks with single parity, this is a scenario that should not happen, i.e., disabling one disk during the rebuild of another with single parity, disk7 look OK, though there are a lot of CRC errors, if these are recent you should replace the SATA cable, then you can force enable disk7 to try and rebuild disk5, assuming parity is still valid, to do that:
-Tools -> New Config -> Retain current configuration: All -> Apply
-Check all assignments and assign any missing disk(s) if needed
-IMPORTANT - Check both "parity is already valid" and "maintenance mode" and start the array (note that the GUI will still show that data on parity disk(s) will be overwritten, this is normal as it doesn't account for the checkbox, but it won't be as long as it's checked)
-Stop array
-Unassign disk5
-Start array (in normal mode now), ideally the emulated disk will now mount and contents look correct, if it doesn't you should run a filesystem check on the emulated disk
-If the emulated disk mounts and contents look correct stop the array
-Re-assign disk5 and start array to begin.