The computer has been running slower the normal so I did this. When I run first aid it fails with the following message in the details First Aid found corruption that needs to be repaired. To repair the startup volume, run First Aid from Recovery. What did I do? Click Done to continue Running First Aid on “Untitled” (disk1s1) NOTE: First Aid will temporarily lock the startup volume. Verifying file system. Volume could not be unmounted. Using live mode. Performing fsck_apfs -n -l -x /dev/rdisk1s1 Checking the container superblock. Checking the EFI jumpstart record. Checking the space manager. Checking the space manager free queue trees. Checking the object map. Checking volume. Checking the APFS volume superblock. The volume Untitled was formatted by hfs_convert (945.260.7) and last modified by apfs_kext (945.275.7). Checking the object map. Checking the snapshot metadata tree. Checking the snapshot metadata. Checking the extent ref tree. Checking the fsroot tree. error: directory valence check: directory (oid 0x80062): nchildren (1) does not match drec count (0) error: directory valence check: directory (oid 0xe002e): nchildren (1) does not match drec count (0) Verifying allocated space. Performing deferred repairs. error: nchildren of inode object (id 524386) does not match expected value error: nchildren of inode object (id 917550) does not match expected value Deferred repairs failed. The volume /dev/rdisk1s1 could not be verified completely. File system check exit code is 8. Restoring the original state found as mounted. Operation successful.