Hard disk not properly working

I have a 4tb Seagate expansion hard disk which worked fine I used it for quiet a while and had 2 partitions , only one partition was bit locked Yesterday I removed bit lock protection and in the middle of the process the computer shut down because the main switch was turned off by someone for some reason and I didn't have a ups so

Now when I connect my hard disk it doesn't show up in file explorer and in disk management shows a hard disk is connected and shows the 2 partitions but only the sizes shows no names nothing

What can I do

I suggested to get and run the Seagate Hard Drive test app and test the drive.

You responded that The software won't work it just freezes on "searching for supported devices

So the hard drive has failed and it needs to be replaced.

It appears the data will not be readily recoverable and you will need a local agency to try to recover the data.