Zasikovna Module 3.3.0 Breaks PrestaShop 1.7.6.7: Troubleshooting Guide

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Zasikovna Module 3.3.0 Breaks PrestaShop 1.7.6.7: Troubleshooting Guide

Hey guys, have you ever encountered a situation where a module update just completely throws your PrestaShop store into chaos? Well, it looks like a recent update of the Zasikovna module, specifically version 3.3.0, is causing some serious headaches for those of us running PrestaShop 1.7.6.7. Based on the error log provided, it seems like the module is incompatible with the older Symfony version used in this specific PrestaShop version, leading to a nasty 500 Internal Server Error. Let's dive in and see what's going on and how we can try to fix it, shall we?

Understanding the Problem: The ClassNotFoundException

The core of the issue lies in a ClassNotFoundException. This is essentially a polite way of your server saying, "Hey, I can't find this piece of code the module is asking for." In this case, the module is trying to use a class called HttpClient from the Symfony\Component\HttpClient namespace. This usually indicates that the module relies on a newer version of the Symfony framework than the one supported by your PrestaShop installation (version 1.7.6.7). Newer Symfony versions have different dependencies and class structures that may not be compatible with older PrestaShop versions, which is precisely what's happening here. The error message helpfully suggests that you might be missing a use statement, but that is unlikely to be the core problem. The module developers need to ensure compatibility, not the end user. This type of error is extremely common when dealing with software dependencies and version conflicts. In the context of e-commerce, it can be particularly frustrating because it can lead to downtime, lost sales, and a general feeling of panic. This error can be triggered by a wide range of issues, from incorrect file paths to missing or outdated libraries. In this specific situation, the HttpClient class is core of Symfony functionality that is not available or present on an older version of PrestaShop like the one you are running.

Diving into the Error Log

Let's analyze the provided error log to understand the situation more deeply. The log entry gives us some crucial information:

85.163.99.20 - - [08/Nov/2025:09:08:31 +0100] "GET /admin11/index.php?controller=AdminOrders&token=46a44c920fd8aff2675b16502e91f065 HTTP/1.1" 500 495 "https://goodgoods.cz/admin11/index.php?controller=AdminOrders&token=46a44c920fd8aff2675b16502e91f065" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:144.0) Gecko/20100101 Firefox/144.0"
[2025-11-08 09:08:32] request.CRITICAL: Uncaught PHP Exception Symfony\Component\Debug\Exception\ClassNotFoundException: "Attempted to load class "HttpClient" from namespace "Symfony\Component\HttpClient". Did you forget a "use" statement for e.g. "Http\Client\HttpClient", "PaypalAddons\Http\Client\HttpClient" or "PaypalAddons\classes\API\Client\HttpClient"? at /domains1/nh2683700/public/www_root/modules/packetery/libs/Tools/HttpClientWrapper.php line 27 {"exception":"[object] (Symfony\\Component\\Debug\\Exception\\ClassNotFoundException(code: 0): Attempted to load class \"HttpClient\" from namespace \"Symfony\\Component\\HttpClient\".\nDid you forget a \"use\" statement for e.g. \"Http\\Client\\HttpClient\", \"PaypalAddons\\Http\\Client\\HttpClient\" or \"PaypalAddons\\classes\\API\\Client\\HttpClient\"? at /domains1/nh2683700/public/www_root/modules/packetery/libs/Tools/HttpClientWrapper.php:27)"
  • 500 Internal Server Error: This is a generic error that means something went wrong on the server's side. In this case, it's a direct result of the ClassNotFoundException.
  • /modules/packetery/libs/Tools/HttpClientWrapper.php: The error originates in a file within the Zasikovna module's directory. This points to the module as the source of the problem. Line 27 is the culprit. This is where the problematic code tries to use the HttpClient class.
  • "Attempted to load class "HttpClient"...": The core of the problem. It confirms that the module is looking for a class that isn't available in the current environment.
  • The web server access log provides information about when the error occurred. The GET request indicates that the error happened when accessing the AdminOrders section of the PrestaShop back office.

Potential Solutions and Workarounds

Okay, so what can we do to try and fix this? Here are a few potential solutions and workarounds. Remember, it is always a good idea to back up your store's files and database before attempting any major changes.

1. Downgrade the Zasikovna Module

This is usually the quickest and safest solution. If possible, try to downgrade the Zasikovna module to a previous version that was compatible with your PrestaShop 1.7.6.7 installation. You might have a backup of your modules or be able to find an older version on the module developer's website or repository. If you are lucky, they may still have the older version available for download. After installing the older version, clear your cache. This should resolve the immediate issue. This approach ensures that you're using a version of the module that is known to work with your PrestaShop version.

2. Contact the Module Developer

The next best step is to contact the Zasikovna module developers. Explain the issue you're facing (incompatibility with PrestaShop 1.7.6.7 and the ClassNotFoundException) and ask if they have a compatible version or if they can provide a fix. They are responsible for making their module compatible with as many versions of PrestaShop as they can. They might be aware of the problem and have a patch or a specific version to address it. Make sure to provide them with the error log details to help them diagnose the issue.

3. Check for Module Updates (Again)

It might sound counterintuitive, but check for any new module updates. The developers may have released a patched version since you first encountered the problem. Go back to your module management area and look for an update.

4. Code-Level Troubleshooting (Use with Caution!)

Warning: This is for experienced users only. Making code changes can potentially break your store if not done correctly. Only attempt this if you are comfortable working with PHP code and understand the risks.

If you're feeling adventurous and understand the risks, you could try to manually modify the module's code. This involves opening the problematic file (/modules/packetery/libs/Tools/HttpClientWrapper.php) and either:

  • Commenting Out the Problematic Code: Try commenting out the line that uses the HttpClient class. This might prevent the error, but it could also break other functionality within the module. Use // at the beginning of the line to comment it out.
  • Replacing with Alternative (if possible): If you understand the code, try replacing the problematic HttpClient calls with an alternative method that is compatible with your PrestaShop version (e.g., using curl). This is more complex and requires a good understanding of PHP and the module's inner workings. There are plenty of online resources, guides, and tutorials that can help you understand these areas if you are interested. If you are doing this, make sure to test thoroughly!

Example of commenting out the line (in the file /modules/packetery/libs/Tools/HttpClientWrapper.php):

// $client = new Symfony\Component\HttpClient\HttpClient(); // Comment this line out

5. Check Your PrestaShop Version and Dependencies

Although it's less likely to be the direct cause in this scenario, ensure your PrestaShop core files and any other related modules or libraries are up to date and correctly installed. In the PrestaShop back office, go to your module manager and check for updates. While the error is specific to the Zasikovna module, conflicts with other modules or outdated core files can sometimes contribute to unexpected behavior. Also, make sure that any required PHP extensions are enabled on your server.

Prevention and Best Practices

To prevent issues like this in the future, consider these best practices:

  • Test Module Updates in a Staging Environment: Always test module updates in a staging or development environment that mirrors your live store before applying them to your production site. This lets you catch and fix any compatibility issues without affecting your customers.
  • Keep Your PrestaShop Version Up-to-Date (when possible): While upgrading can sometimes introduce new problems, staying relatively up-to-date with PrestaShop versions can help ensure compatibility with newer modules. The newer the version of PrestaShop, the more likely you will be able to keep up with the latest module versions. However, always test before updating!
  • Read Module Release Notes and Documentation: Before installing a new module or updating an existing one, carefully review the release notes and documentation. This often includes information about compatibility, required dependencies, and potential issues. These documents may even contain a list of known issues and their recommended solutions. Developers are very likely to include information on any known problems. Following these steps can save you time and frustration.
  • Backups, Backups, Backups: Regularly back up your entire store (files and database) so you can easily revert to a working state if something goes wrong. Automated backup solutions are a good investment.
  • Monitor Your Error Logs: Keep an eye on your server's error logs. They often provide valuable clues about potential problems, allowing you to address issues before they cause major disruptions. You can set up notifications so that you know when errors are happening, helping you fix them more quickly.

Conclusion

Dealing with module compatibility issues can be frustrating, but by following these troubleshooting steps, you should be able to get your PrestaShop store back up and running. Remember, the key is to pinpoint the source of the problem, communicate with the module developers, and take appropriate action. Hopefully, the above information is enough to help you resolve the Zasikovna module conflict. Good luck, and happy selling!