Install Sentry in Opensource Project

I’m trying to install Sentry to monitor a php open source project.
I tried to install it using composer inside the project directory, running:
composer require sentry/sdk

I see that there’s already a composer.json file in the project directory before running the command above.

When I run the command, it complains about a bitbucket public key:
############
Failed to execute git clone --mirror – ‘git@bitbucket.org:colosa/pmdynaform.git’ ‘/root/.cache/
composer/vcs/git-bitbucket.org-colosa-pmdynaform.git/’

Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
############

I gave all permissions to my folders to test and same not working result. Also I created my ssh key in my local machine just in case.

It seems that this specific package is “private” (I guess). However package is already downloaded in my machine and I don´t need to download it again.

I’m using Centos 7, nginx (latest) , php-fpm (7.4.x) and mysql (8.x).

Also, I tried to create a new directory from project directory:
mkdir sentry
then, go to sentry directory, download everything and let the packages live there.

I don´t know what could be the best way to enable Sentry, so, maybe you can give a couple of ideas to enable Sentry.

Thanks in advance.