I found error when i try to install Open edX

ERROR! Syntax Error while loading YAML.
mapping values are not allowed in this context

The error appears to be in ‘/var/tmp/configuration/playbooks/roles/insights/tasks/main.yml’: line 56, column 11, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:

  • name: upgrade npm
    command: “npm install -g npm@{{ INSIGHTS_NPM_VERSION }}”
    ^ here
    We could be wrong, but this one looks like it might be an issue with
    missing quotes. Always quote template expression brackets when they
    start a value. For instance:

    with_items:
    - {{ foo }}

Should be written as:

with_items:
  - "{{ foo }}"

============================================================
Ansible failed!

Decoded error:
No message to decode.

============================================================
Installation failed!

If you need help, see Connect - Open edX .
When asking for help, please provide as much information as you can.
These might be helpful:
Your log file is at /home/edx/logs/install-20230712-114947.log
Your environment:
OPENEDX_RELEASE=open-release/nutmeg.1

Installation finished at 2023-07-12 11:50:08
please help me

Hi @hassiba, welcome to the forum!!
Which process are you following? Unless there is a special need to do something different, you should use Tutor to install Open edX.