Wrong fs type, bad option, bad superblock on /dev/sdaX

I am trying to create an automated mount for an external hard drive, but it keeps failing. I am a little newbiew at linux.

I have googled and searched in StackExchange and I tried a lot of things, but I did not find a solution for my problem.

OS: Raspbian Stretch

Those are the steps I did:

Format external drive to ext4

sudo mkfs.ext4 /dev/sda1 -L hdd_moc
mke2fs 1.43.4 (31-Jan-2017)
/dev/sda1 contains a ext4 file system labelled 'hdd_owncloud'
    last mounted on Mon Feb 12 09:34:38 2018
Proceed anyway? (y,N) y
Creating filesystem with 244181760 4k blocks and 61046784 inodes
Filesystem UUID: b9b47e44-db76-40de-a0ed-940c9699799a
Superblock backups stored on blocks:
    32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
    4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
    102400000, 214990848

Allocating group tables: done
Writing inode tables: done
Creating journal (262144 blocks): done
Writing superblocks and filesystem accounting information: done   

Create directory for mounted external usb drive

sudo mkdir /mnt/hdd_moc

Create the www-data user to the group

sudo groupadd www-data
sudo usermod -a -G www-data www-data

Give permissions

sudo chown -R www-data:www-data /mnt/hdd_moc
sudo chmod -R 775 /mnt/hdd_moc
ls -l /mnt
total 4
drwxrwxr-x 2 www-data www-data 4096 Feb 12 10:06 hdd_moc

Get the gid, uid and uuid

id -g www-data
33
id -u www-data
33
ls -l /dev/disk/by-uuid
total 0
lrwxrwxrwx 1 root root 15 Feb 12 09:49 9a7608bd-5bff-4dfc-ac1d-63a956744162 -> ../../mmcblk0p2
lrwxrwxrwx 1 root root 15 Feb 12 09:49 B60A-B262 -> ../../mmcblk0p1
lrwxrwxrwx 1 root root 10 Feb 12 10:12 b9b47e44-db76-40de-a0ed-940c9699799a -> ../../sda1

Give the instruction to fstab

sudo nano /etc/fstab

proc            /proc           proc    defaults          0       0
PARTUUID=ed7ab5b3-01  /boot           vfat    defaults          0       2
PARTUUID=ed7ab5b3-02  /               ext4    defaults,noatime  0       1
UUID=b9b47e44-db76-40de-a0ed-940c9699799a /mnt/hdd_moc auto nofail,uid=33,gid=33,umask=0027,dmask=0027,noatime 0 0

Automated mount test

sudo mount -a
mount: wrong fs type, bad option, bad superblock on /dev/sda1,
   missing codepage or helper program, or other error

   In some cases useful info is found in syslog - try
   dmesg | tail or so.

Normal mount test

sudo mount /dev/sda1 /mnt/hdd_moc -> It works, I can do a "ls".

So I think my problem is in the 4th line of fstab. I readed fstab info but I can not understand what I should do. (https://wiki.debian.org/fstab)

Thank you :)