WP Toolkit stuck at 0% when installing a new instance

Vincent Lauton

Updated January 13, 2026 19:06

Plesk for Linux kb: technical ext: wptk ABT: Group A

Applicable to:

Plesk for Linux

Symptoms

The installation of a WordPress instance stuck on Downloading and Unpacking:
The following errors can be found in the /var/log/plesk/panel.log with enabled debug:

DEBUG [extension/wp-toolkit] Downloading of WordPress 5.4 package will performed at 3 attempts.
DEBUG [extension/wp-toolkit] Start attempt 1 to download package using URL: https://wordpress.org/wordpress-5.4.zip
INFO [extension/wp-toolkit] Acquire lock 'download_package_wordpress-5.4.zip'

Cause

Because of the network issues (WP Toolkit could not download the package due to low speed), the necessary WordPress installation package can not be downloaded.

Here is how it works:

A task to install a WordPress instance is created, it searches for the package and finds out that it needs to be downloaded from wordpress.org.
This task tries to download the package. To do it, the task creates a lock file to get the package.
The task gets stuck forever (or a very long time) because of the network issue.
A new task tries to download the package and waits for the 1st task to end up so the 2nd one can be locked.

Resolution

For Linux

Connect to the server via SSH
Download the package manually using any method
Move the package to /usr/local/psa/var/modules/wp-toolkit/packages/ and changed the ownership to the correct one:

# mv wordpress-5.4.zip /usr/local/psa/var/modules/wp-toolkit/packages/wordpress-5.4.zip

# chown psaadm:psaadm /usr/local/psa/var/modules/wp-toolkit/packages/wordpress-5.4.zip
Cancel the stuck tasks
Remove the "lock" files:

# rm -rf /usr/local/psa/var/modules/wp-toolkit/locks/*

For Windows

Connect to the server via RDP
Download the package manually using any method
Move the package to %plesk_dir%var\modules\wp-toolkit\packages
Cancel the stuck tasks
Remove the "lock" files under %plesk_dir%var\modules\wp-toolkit\locks