At the first screen shot is says ERROR twice, with UNC status. This means there are (at least) two bad sectors.
There are also a number of reallocated sectors, high read error rate, and a number of other smart attributes which don't look good.
Conclusion:
You drive is broken. You must replace it.
You can check warranty status for Seagate drives online:
http://www.seagate.com/www/en-us/sup..._&_submit_rma/