Plesk interface is not accessible if Plesk Obsidian version is 18.0.52 or lower: Composer detected issues in your platform: Your Composer dependencies require a PHP version “>= 8.2.0” – Plesk

Symptoms

• Plesk Obsidian version is 18.0.52 or lower:

  # plesk version
  Product version: Plesk Obsidian 18.0.52.3

• Plesk interface is not accessible with the following error message in a web browser:

  Composer detected issues in your platform: Your Composer dependencies require a PHP version ">= 8.2.0".

Cause

Newer version of Docker is not compatible with Plesk version 18.0.52 and lower.

Resolution

1. Connect to the Plesk server via SSH.

2. Download the Docker extension package for Plesk Obsidian version 18.0.52 and lower:

   # wget https://ext.plesk.com/packages/e029a753-2d7f-4e2e-8e23-6106f3fdd09f-docker/download?1.7.1-1230 -O docker_ext_1.7.1-1230

3. Install it:

   # plesk bin extension --install dockerext1.7.1-1230

4. Update Plesk to the latest Obsidian release.