Hi everyone! I found a way that helped me solve this problem, I'm happy and want to share with you. First you need to go to the Terminal and enter the command diskutil list. Then find the hard drive you want to be repaired. It will be something like /dev/disk5. You need to remember this name. After that, restart the Mac and start it in recovery mode using the Cmd + R. then go to the Window - Terminal. Enter following command /sbin/fsck_apfs -fy /dev/disk5. Where instead of apfs you need to write the name of your file system and instead of /dev/disk5 the name of your hard drive. Then the restoration of your file system and the elimination of errors will start. In all cases, write yes to eliminate errors. All! restart your mac and you're done. This helped me to access the disk without data loss. I hope this will be helpful to you.