Recovering delete Bitlocker partition

Hi,

I have a problem and I am hoping someone here could help me out a bit. I have a 2TB external HDD with multiple partitions and one of them was Bitlocker encrypted. I had a lot of my old data on there like old backups and family pictures, and yeah I was stupid enough not to have any backups. I didn't use the disk for quite sometime and recently checked it, and strangely the space of the Bitlocker encrypted drive showed up as unallocated. I don't remember how this happened and I might have deleted the partition by mistake.

Now, I am trying to recover the partition or the files in the partition. I tried multiple third party tools like the Minitools MiniTool Power Data Recovery, DiskGenius, Stellar Data Recovery and more, but none of them were able to detect the deleted partition. I tried using the bde-repair tool, but it gives the error:
ERROR: The input volume has suffered damages to critical information related to the decryption key. Please try the -KeyPackage option to specify a key package. The volume may not be recoverable.

I deleted the rest of the partitions, hoping that there might be BL metadata copies in other locations and ran the bde-tool again and this time it found the proper metadata, but it was invalid and in the end I got the same error as before. I also tried to run the other recovery tools again, which finds the other deleted partitions but not the encrypted one.

Is there anything more I can do at this point to recover my data, or is there no hope? Thanks.