Getting an error when pushing to a repo on Bitbucket v7.6.9

[Obss Sysadmin]

Hello,

There are 4 different folders in a folder and files in them.
sample content
folder/
folder/folder1/test.py
folder/folder1/README.md
folder/folder1/metafile.yml
folder/folder2/test.py
folder/folder2/README.md
folder/folder2/metafile.yml

If I upload the files one by one, there is no problem, but when I try to upload them all at once, I get the following error.

$ git push origin test_push
Counting objects: 123, done.
Delta compression using up to 16 threads.
Compressing objects: 100% (57/57), done.
Writing objects: 100% (123/123), 116.73 KiB | 116.73 MiB/s, done.
Total 123 (delta 78), reused 110 (delta 65)
remote: usage: git index-pack [-v] [-o <index-file>] [--keep | --keep=<msg>] [--verify] [--strict] (<pack-file> | --stdin [--fix-thin] [<pack-file>])
error: remote unpack failed: index-pack abnormal exit
To ssh://bitbucket-local.com:7999/test/test.git
! [remote rejected] test_push -> test_push (unpacker error)
error: failed to push some refs to 'ssh://git@bitbucket-local.com:7999/test/test.git

Bitbucket logs
Git hooks have not been called. Please verify that the hooks are configured correctly - see confluence atlassian  / display/BITBUCKETSERVERKB/Git+hook+scripts+are+not+executing?utm_campaign=in-app-help&utm_medium=in-app-help&utm_source=stash for details

I tried almost all the solutions on the internet but I couldn't find the solution. What steps should we take to fix this error?

[John Lawlor]

Are you able to access the logs on the Bitbucket server? Can you post the log here?