Why does pull work and push not?

Question

git

Private repository in bitbucket.
Keys added from two servers. On one everything works fine.
On the other, pull works, but push does not - it says that it is allegedly anauthorized. What could be the problem?

[[email protected] www]$ git push
Unauthorized
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
[[email protected] www]$ git pull
remote: Counting objects: 14, done.
remote: Compressing objects: 100% (14/14), done.
remote: Total 14 (delta 11), reused 0 (delta 0)
Unpacking objects: 100% (14/14), done.
From bitbucket.org:madzhugin/project
   932b797..be04387  master     -> origin/master
Merge made by the 'recursive' strategy.
 local/includes/tmpl/autoload/filter.php                |   8 +++----
 local/sources/css/autoload/filter.css                  | 104 ++++++++++++++++++++++++++++++++++-------------------------------------------------
 local/sources/pugins/vue-slider-component/material.css |  16 ++++++++++---
 3 files changed, 59 insertions(+), 69 deletions(-)
[[email protected] www]$

Answer 1

I asked myself - I answer myself:
If the key is added to the repository, then with this key you can only read the repository.
You need to add a key to your account so that you can write to the turnip.