1 TB problems

I have a 1 tB hardrive for windows, but i have a mac so i formatted it on my mac. Now, when i was copying files from it to another hardrive it crashed. I tried formatting it but i couldnt do it on disk utility. I tried partitioning it but it would allow me. Please tell me what i can do because its new, only been with me for one month. I originally formatted it to mac os extended (journaled encrypted).

IF ANYONE HAS ANY IDEAS PLEASE FEEL FREE TO SHARE!

Go to disk utility and run first aid

try removing the encryption and then partition the drive if possible

i tried partitioning it… but i cant. i cant even erase it.

Yeah,  the partition is encrypted and unless the encryption is removed it will not let you do anything