Webhosting - WordPress

Application installer error

Problem: An error occurs during installation using the installer on Webhosting or WMS.

Solution: Common installer issues are covered in the corresponding section of the guide Webhosting – Application Installer.

Administration is not available

Problem: I cannot log in to the WordPress administration.

Cause: The WordPress administration, including the one installed by our installer, is completely separate from the WEDOS customer administration. It may use a different login email and password.

It is also common for the administration link in the form /admin or /wp-admin to stop working.

Solution: If the administration link in the form domena.tld/admin does not work, try entering domena.tld/wp-login.php, where replace domena.tld with your domain.

WEDOS customer support does not have access to the WordPress administration. Restore a lost password using the “Forgot your password?” link on the login screen.

Error 503

Problem: On a website with WordPress, error 503 appears intermittently, most often at times when someone is working in the administration. After refreshing the page, the website works again for a while. When using WEDOS.protection, an error protection page is displayed instead of the classic page.

Cause: The hosting always has a certain number of simultaneously running PHP processes (the higher the plan, the more processes). A normal request releases the process immediately, but a background task can hold it for 20 to 30 seconds. When more of them accumulate, free processes run out and additional visitors do not receive a response. Most often this is WP-Cron (triggered when a page is visited) or the WooCommerce task queue (Action Scheduler). Updates, imports, thumbnail generation, or a backup plugin can also increase the load.

Solution: Reduce the load on processes:

• Disable triggering WP-Cron when pages are visited. Add the code define('DISABLE_WP_CRON', true); to the wp-config.php file before the line /* That's all, stop editing! */, and set the regular execution of the wp-cron.php file once every 5 to 15 minutes according to the web hosting CRON guide. Without this second step, the website would stop running scheduled tasks altogether.
• If you use WooCommerce, in the settings Status Scheduled actions, delete the records in the “Completed” and “Failed” tabs.
• Perform system and plugin updates or other major interventions on the website outside peak hours.
• If the problem persists, check the plugins – most often backup, import, or those that download data from external services.

An error occurred while connecting to the database server

Problem: The error message An error occurred while connecting to the database server. is displayed.

Cause: You will most often encounter this error after changing the password for the database administrator account.

Solution: Make sure the database used by WordPress exists, and that the wp-config.php file on FTP contains the current connection information for this database, including the username and current password.

If the connection information is correct, check the WEDOS Status ⧉ service to see whether an outage is in progress.

Media upload error – temporary directory does not exist

Problem: Media cannot be uploaded; the error message Temporary directory does not exist. appears.

Cause: The FTP root directory is missing the tmp folder for temporary files.

Solution: Log in to FTP using the main account and check that, in addition to the www folder, there are also tmp and session folders. If they do not exist, create new ones.

Undefined function

Problem: The website does not work; an error message beginning with Fatal error: Call to undefined function. is displayed.

Cause: The version of WordPress, the template, or the plugin is not compatible with the PHP version.

Solution: Check the requirements of the system, templates, and plugins and set a PHP version that they support.

Another issue

You can find other common issues and their solutions in the community guide WordPress: Broken website ⧉. If even this article does not solve your specific problem, try searching for the problem on the Help forum ⧉.