I presume sdb is your second sata drive giving you the problem, which is simply one of permissions. I note also that it is not included in your /etc/fstab file so is not mounted at boot, so for simplicity I suggest you label the partition to sdb1 with
which means that the partition will always mount at /media/sdb1. Tyhen you need to make a folder /media/sdb1 with command
sudo tune2fs -L sdb1 /dev/sdb1
then add the following two lines to /etc/fstab
sudo mkdir /media/sdb1
Change the UUID (in red) to that of your partition which you can get from
# Disk 2 on /dev/sdb1 mounted at boot
UUID=2a1a9b57-4d0a-4570-974f-d6114fb25ef1 /media/sdb1 ext4 defaults,relatime 0 2
You will also need to give yourself permission to write to the partition either with a chown command to your username on the mountpoint
sudo blkid -c /dev/null
or using general chmod 777 permissions which gives everybody full permissions on that mount point, perhaps less secure.
sudo chown username:username /media/sdb1
Come back again if that does not make full sense to you and I'll try to make it a bit clearer.