Not able to Clone repository in Source Tree.

I am not able to clone the repository.
git -c diff.mnemonicprefix=false -c core.quotepath=false clone --recursive https://itsromiljain@bitbucket.org/s_ranjan83/dfc_dev.git C:\dfc_dev
Cloning into 'C:\dfc_dev'...

Tried 5-6 times but getting below error every time. Not sure why this issue is coming up. Though tried below command also as mentioned in one of the ticket but still the same issue.

git config --global http.postBuffer 524288000

It would be great if someone can help me out in resolving it.

fatal: early EOF

fatal: The remote end hung up unexpectedly
fatal: index-pack failed

error: RPC failed; result=18, HTTP code = 200