WP Toolkit can not list plugins: Something went wrong. Cannot read properties of null (reading 'map')

Symptoms

• WordPress > Plugins tab can not be opened in Plesk with:

  PLESK_ERROR: Something went wrong.
  Cannot read properties of null (reading 'map')

• The following error can be found in the /var/log/plesk/panel.log file:

  CONFIG_TEXT: ERR [extension/wp-toolkit] Plugin 'layerslider' not found on 'Example'

• While reviewing plugin directories for the affected domain, the plugin's name from the above error is found to have uppercase letters:

  # ls -la /var/www/vhosts/example.com/httpdocs/wp-content/plugins/
  drwxr-xr-x 13 jdoe psacln 4096 Mar 22 2019 LayerSlider

Cause

Product issue:

• EXTWPTOOLK-10772 "Impossible to open Vulnerabilities drawer / global Plugins tab when plugin slug is not fully in lowercase".
  Fixed in:
  • WP Toolkit 6.2.10 15 September 2023

Resolution

Please consider updating the WP Toolkit extension:

• How to update Plesk extensions