To https://git.heroku.com/clone-insta10.git ! [remote rejected] HEAD -> master (pre-receive hook declined) error: failed to push some refs to 'https://git.heroku.com/clone-insta10.git' code example

Example: To https://git.heroku.com/clone-insta10.git ! [remote rejected] HEAD -> master (pre-receive hook declined) error: failed to push some refs to 'https://git.heroku.com/clone-insta10.git'

To https://git.heroku.com/myapp.git
 ! [remote rejected]   master -> master (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/myapp.git'