The Extensions page cannot be opened with one of the following messages:
PLESK_ERROR: Error: Unable to connect to the extensions catalog: Connection timed out after 30001 milliseconds
PLESK_WARN: Internal server error Retry
Unable to install Plesk Migrator via Tools and Settings > Updates and Upgrades:
PLESK_ERROR: Error: Unable to install the extension: Executing /usr/local/psa/tmp/moduleR2GaBC/plib/scripts/pre-install.php failed: It is impossible to install Plesk Migrator on Linux servers via Plesk extensions catalog. Please install it by means of Plesk Installer.
Unable to install Plesk Migrator via Plesk Installer with the following error message:
The component plesk/pmm is not available.
Unable to install any extension via CLI, for example:
# plesk bin extension -i imunify360
Connection timed out after 30000 milliseconds
exit status 1
Plesk’s main page (Home) loads slow.
The following error messages can be found in /var/log/plesk/panel.log:
INFO [panel] Retrieving Extensions Catalog feed: https://ext.plesk.com/api/v4/packages?platform=unix
ERR [panel] PleskException: connect() timed out!
The following error messages can be found in /var/log/plesk/install/autoinstaller3.log:
Downloading extensions catalog feed...
Debug: download extension catalog feed: https://ext.plesk.com/api/v2/packages?platform=unix&version=12.5.30&ai-compatible
Failed to collect extension catalog packages: Failed to download extension catalog feed by URL https://ext.plesk.com/api/v2/packages?platform=unix&version=12.5.30&ai-compatible:
connect() timed out!
ext.plesk.com is not reachable from a Plesk server:
# wget ext.plesk.com
–2018-01-01 00:00:00– http://ext.plesk.com/
Resolving ext.plesk.com… 126.96.36.199
Connecting to ext.plesk.com|188.8.131.52|:80… failed: Connection timed out.
Allow connections to ext.plesk.com. Contact your network administrator for assistance.