Applications & Extensions

Plesk applications and extensions installation/management articles. WordPress, Joomla, Let's Encrypt, CloudFlare and etc.

KernelCare cannot update kernel in Plesk: Updates already downloaded
Unable scan domain by Composer applications: There is no web hosting configured on domain
Unable to install Plesk Email Security extension: The value of variable $myhostname should have been a fully qualified domain name
WP Toolkit shows WordPress instance as broken when a domain is using Alt-PHP: Error establishing a database connection
Unable to issue/renew a Let's Encrypt certificate in Plesk: Error creating new account :: "" is not a valid e-mail address
Why ServerShield by CloudFlare is not available for installation or purchase in Plesk?
Unable to login to WordPress admin dashboard using Plesk preview: Cookies are blocked or not supported by your browser
Plesk sends mail notification each night: Please read /usr/share/doc/tmpreaper/README.security.gz first
Paid theme/plugin can not be updated in WP Toolkit in Plesk: Error: No themes updated
Can't update Joomla or Moodle: file_uploads is set to 'off'
Email notifications are received daily from a Plesk server: /etc/cron.daily/imunify360-firewall exited with return code 127
Smart Update fails: unable to correctly clone your website for further analysis
WP Toolkit stuck at 0% when installing a new instance
Wordpress notifications are received: Failed to reset cache for the instance #902: An error has occurred when decoding JSON: Decoding failed: Syntax error
Unable to reissue the Let's Encrypt SSL certificate in Plesk: DNS problem SERVFAIL looking up TXT
How to activate Google Workspace on a domain in Plesk
Unable to issue Let's Encrypt certificate when Let's Encrypt extension is in standalone mode
Unable to issue Let’s Encrypt certificate for domain in Plesk for Windows: misconfiguration of the Common Challenge Directory
Can't install plugin via WP Toolkit: destination folder already exists
Unable to add a keyword in SEO Toolkit: Keyword limit reached
Enabling ClamAV in Plesk Email Security fails: Cannot allocate memory
All websites on Plesk server periodically unavailable after accessing WordPress comments or working in WordPress dashboard
WordPress instance can not be removed via Plesk applications catalog
Unable to issue a Let's Encrypt certificate: an ASP.NET setting has been detected that does not apply in Integrated managed pipeline mode
SSL/TLS certificate for mail is not automatically updated by Let's Encrypt in Plesk
Receiving Let's Encrypt notifications for a certificate that has already been renewed
Unable to issue a Let's Encrypt certificate in Plesk: The authorization token is not available
How to adjust auto-renewal period for Let's Encrypt certificates in Plesk?
ClamAV Antivirus error in Plesk: Failed to start clamd@scan.service: Unit not found.
Monitoring extension in Plesk is broken: The System Health Monitor component was not found.