Plesk is not accesible: Your Composer dependencies require a PHP version “>= 8.0.2” – Plesk

Symptoms

• Plesk is not accessible with the following error:

  Your Composer dependencies require a PHP version ">= 8.0.2"

• Plesk Obsidian from 18.0.36 to 18.0.49 is in use

• The following error can be found:

  in %plesk_dir%adminlogsphp_error.log on Windows:

  PHP Fatal error: Composer detected issues in your platform: Your Composer dependencies require a PHP version ">= 8.0.2". You are running 7.4.33. in C:Program Files (x86)Pleskadminplibmodulesletsencryptvendorcomposerplatform_check.php on line 24

  in /var/log/plesk/panel.log on Linux:

  PHP Fatal error: Composer detected issues in your platform: Your Composer dependencies require a PHP version ">= 8.0.2". You are running 7.4.33. in usr/local/psa/admin/plib/modules/letsencrypt/vendor/composer/platform_check.php on line 24

Cause

The issue is caused by the updated Let's Encrypt extension version 3.1.13, which relies on newer PHP handlers from 18.0.50 and newer. This behavior is registered as bug #EXTLETSENC-1218.
A hotfix has already been released to address this issue in extension version 3.1.14 for Plesk 18.0.49 and older.

Resolution

1. Connect to the server via SSH (Linux) or RDP (Windows)

2. Execute the following command to update the Let's Encrypt extension as a root user on Linux or in command prompt as an Administrator on Windows):

   # plesk bin extension --upgrade-url https://ext.plesk.com/packages/16835ed5-f030-4645-a4af-b1afe60e783a-letsencrypt/download?3.1.14-871