PrestaShop Documentation, PrestaShop Tutorials

PrestaShop back-office showing blank page after login details entered

If you’re experiencing a blank page in the PrestaShop back-office after entering your login details, there could be several reasons for this issue. Here are some steps you can take to troubleshoot and resolve the problem:

  1. Clear Cache: The first thing you should try is clearing your browser cache and cookies. Sometimes, a corrupted or outdated cache can cause display issues. After clearing the cache, try logging in again.
  2. Check Error Logs: Check the error logs on your server to see if there are any PHP or database errors. You can find error logs in your server’s control panel or by accessing server files. Look for the PHP error logs and see if there are any relevant error messages.
  3. Disable Non-Essential Modules/Extensions: Sometimes, incompatible or poorly coded PrestaShop modules or extensions can cause issues with the back office. Disable all non-essential modules and extensions and try logging in again. If the problem is resolved, re-enable the modules one by one to identify the problematic one.
  4. Increase PHP Memory Limit: A blank page can also be caused by PHP running out of memory. You can try increasing the PHP memory limit by editing your PHP configuration (php.ini) file. Look for the memory_limit setting and increase it to a higher value, e.g., 256M. Save the file and restart your web server.
  5. Check .htaccess File: An incorrect or misconfigured .htaccess file can also cause issues. Make sure your .htaccess file is properly configured and hasn’t been corrupted. You can try renaming it to something like “.htaccess_old” and see if that resolves the issue.
  6. Database Connection: Ensure that your PrestaShop installation is correctly connected to the database. Check your database connection settings in the config/ file. Make sure the database hostname, username, and password are correct.
  7. Verify File Permissions: Check the file and directory permissions of your PrestaShop installation. Ensure that the appropriate files and folders have the necessary permissions. Typically, directories should have 755 permissions, and files should have 644 permissions.
  8. Upgrade PrestaShop: If you’re using an outdated version of PrestaShop, consider upgrading to the latest version. Older versions may have compatibility issues with newer server configurations.
  9. Server Configuration: Sometimes, server misconfigurations can lead to blank pages. Contact your web hosting provider or server administrator to ensure that the server environment is set up correctly for PrestaShop.
  10. Restore from Backup: If you recently made changes or updates to your PrestaShop installation, and the blank page issue started after that, you might need to restore from a backup to a point where the back office was working correctly.

If none of these steps resolve the issue, you may need to seek assistance from a PrestaShop developer or support team who can investigate the problem in more detail, as there can be other factors specific to your installation causing the blank page.

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