Technical Questions
Help articles related to Plesk migration, upgrades, databases ant etc.
Other
- How to start a command prompt as an Administrator on Windows Server
- Plesk and websites are unavailable
- Error from Watchdog is received daily by Plesk administrator after updating to Plesk Obsidian 18.0.37: No entry is registered for key 'translate'
- Phishing Mail received: <example.com> Attention! No disk space(quota) left
- Fix for security-related bug (PFSI-62467)
- Unauthenticated Remote Root Code Execution on Plesk Panel
Plesk Service/Interface
- In Power User View, Plesk File Manager shows contents of last created/switched to webspace by default
- MySQL fails to start when a Plesk server lacks disk space: SQLSTATE[HY000] No space left on device 500 Plesk\Exception\Database
- Unable to connect to Remote Storage using Plesk Backup extensions: Error: Class 'GuzzleHttp\Promise\<ClassName>' not found
- How to disable root access via the SSH Terminal extension for the Plesk administrator?
- See Details button doesn't show notification details for scheduled tasks (cron jobs) since Plesk Obsidian 18.0.36
- Event handler "Physical hosting updated" throws error message each time it executed: Could not decode JSON, syntax error - malformed JSON
Webserver
- How to disable specific ModSecurity rules in Plesk
- Apache keeps going down on a Plesk server: server reached MaxRequestWorkers setting
- Websites on PHP-FPM are unavailable or loading slowly: "server reached max_children setting" OR "pool seems busy"
- Websites on PHP 7.4 and PHP 8.0 are inaccessible on CloudLinux OS: 504 Gateway Time-out
- How to change the maximum attachment size for webmail on the Linux Plesk server?
- plesk repair installation command produces an error: File not found: example.com.conf
Applications & Extensions
- Cannot update WordPress installation from 5.8 to 5.8.1 in Plesk: it completes but still shown as available
- Unable to use NPM install for Node.js application in Plesk: usr/bin/env: ‘node’: No such file or directory
- Plesk repair fs tool does not correct permissions for Recycle Bin directory on Linux
- Roundcube spellchecker does not work on Plesk: An error was encountered on the server
- Unable to access KernelCare extension after its installation: The KernelCare extension has been successfully installed. Please allow up to 5 minutes for all components to be fully configured
- Modern Mozilla cipher suite results in 502 on all websites on Plesk server
Backup, Restore & Migration
- How to restore a Plesk server on a new Linux server from file system?
- How to change the location for Plesk backup files on a Linux server
- How to switch to the new tokens scheme after Dropbox Backup update?
- Pre-migration warning when migrating from server with custom Apache modules: The following Apache modules are not installed
- Migration from 18.0.36 to 18.0.36 fails with error: backup.tar" failed: No such file or directory (2)
- Unable to start migration in Plesk: Unable to find admin user
Databases
- How to fix InnoDB corruption cases for the MySQL databases on Plesk for Linux?
- Cannot restore database from the backup: Errors occurred during the deployment of database content.
- Unable to delete MS SQL database in Plesk: User does not have permission to alter database, the database does not exist, or the database is not in a state that allows access checks
- Unable to export MySQL dump for a domain in Plesk: insufficient privileges to SHOW CREATE
- A PHP-based website fails to open: Failed to connect to MySQL: Access denied for user 'jdoe'@'localhost' (using password: YES)
- MySQL service fails to start on a Plesk server: Table 'mysql.user' doesn't exist
Installation & Upgrade
- Error during Plesk upgrade to Obsidian 18.0.37: PHP Fatal error: Uncaught JMS\Serializer\Exception\RuntimeException: Could not decode JSON, syntax error - malformed JSON.
- Issues upgrading or after converting CentOS 8 to AlmaLinux: none of the providers can be installed
- Unable to update Plesk on CentOS 7 in Google Cloud platform: repomd.xml signature could not be verified for google-cloud-sdk
- Unable to update Plesk Obsidian 18.0.34 to the latest available build on Ubuntu 16.04: There is no release with ID 'PLESK_18_0_35' of product 'plesk' at the installation source
- sa-compile update fails on Plesk server with Plesk Email Security: dpkg: error processing package sa-compile (--configure)
- Plesk update to version 18.0.34 fails with message: Plesk database scheme was not upgraded completely
- Many email messages are sent from PHP scripts on a Plesk server. How to find domains on which these scripts are running if Postfix is used?
- Mail user can't change its own forwarding in Plesk
- [BUG] After updating to Plesk Obsidian 18.0.37 or 18.0.37 Update 1, email message sent to Plesk email account without mailbox and with forwarding to external mailbox is stuck in mail queue
- Mail client provides warnings regarding IMAP connection for Plesk mailboxes: inotify initialization error
- Unable to create/see mailboxes on Plesk with Smartermail: No HTTP resource was found that matches the request URI
- Unable to log in to webmail on a Plesk for Windows server: Unknown or Disabled User!
DNS & Statistics
- Domains hosted on Plesk server cannot be accessed: DNSPROBE FINISHED ERROR
- Unable to update web-statistics in Plesk: Unable to parse pending domains traffic line
- How to add an MX DNS record with a custom priority for a Plesk domain?
- Mail is received: No valid IP addresses found for sub.example.com
- DNS zone of newly created subdomain is not syncronized with DigitalOcean via extension
- Website hosted in Plesk shows Web Server's Default Page: Domain is resolved to the wrong IP address from the same server.
Website Builder
- How to install Web Presence Builder 17.8.12 Standalone in Plesk for CentOS 8/Debian 10?
- Migration from WPB 12.0 to WPB 17.8.12
- How to enable Web Presence Builder for all websites?
- Web Presence Builder "Text & Images" module is displayed on all website pages instead of being displayed only on the page where the module had been added
- Error while accessing Web Presence Builder: Base table or view not found
- Unable to backup/restore a snapshot for Web Presence Builder in Plesk for Windows: Invalid Snapshot