When updating a premium plugin in WordPress, especially paid ones like Nexter Blocks Pro or Nexter Extension Pro, you may encounter the error message “Invalid License, Update Failed: Download failed. Unauthorized.”
It usually indicates a problem with your license key. Here is a step-by-step guide to resolve it.
How to Fix the “Invalid License Key” Error
If you are trying to activate your license key and encounter the “Invalid License Key” error, follow the steps below to troubleshoot and resolve the issue:
1. Ensure You’re Using the Latest Plugin Version
Before proceeding, confirm that you are running the latest version of the plugin you are having the problem with, either Nexter Blocks Pro or Nexter Extension Pro.
To check and update your version:
- Visit Nexter Changelog to verify the latest available version.
- If your plugin is outdated and you cannot update it due to the license error, you may need to manually update the plugin using the steps in the Manually Update section below.
2. Check and Re-Activate Your License Key
Sometimes the error occurs due to a domain mismatch or stale license records stored on the licensing server.
To resolve this:
- Go to your POSIMYTH Store Dashboard.
- Locate your license key under the relevant product.
- Click on the “Manage Site” button (above the license key).
- Deactivate the domain currently using the license if it is listed.
- Return to your WordPress site and re-enter the license key to activate it again.
3. Check Your Server-Side Firewall and Security Rules
Sometimes the license validation or update request from your WordPress site can be blocked by your server’s firewall or security system. If the server firewall is blocking outgoing connections to the licensing server, you may see this error when trying to activate the license key.
To fix this:
- Ask your hosting provider or server admin to confirm that outgoing connections to the licensing server are allowed and not blocked by firewalls, mod_security rules, or other server-side security tools.
If you are still encountering the error after following the steps above, it could be due to one of the following common reasons:
Reasons
1. There could be a domain mismatch. The website from which you are trying to update the plugin is not connected with the plugin license. This can happen if you first install the plugin on a test site and then move it to the live site using the same license. Even though it may say the license is “Activated,” it is actually deactivated in this situation.
2. Your plugin license could have expired. If your license has expired and you try to update the plugin, you will see this error message.
3. You may have entered the wrong license key for the plugin, which will prevent the plugin from updating.
4. Your plugin license might be inactive. If your license key is not active and you try to update the plugin, the update will not work.
5. If your WordPress server uses an outdated version of OpenSSL or cURL, the plugin may not update properly because it cannot securely communicate with the licensing server.
Solution
Deactivate and Re-activate License
Deactivate and reactivate the plugin license from your WordPress website. This resolves domain mismatch issues.
For Nexter Blocks or Nexter Extension, follow these steps:
- From the Dashboard, go to Nexter > Activate PRO.
- Click on the Deactivate button in the Activation Key section.
- Paste the license key again and click on the Activate button.
If you are having any issues while activating the license, check the common license activation issues.
Manually Update
You can manually update the plugin. Follow these steps:
- Download the latest version of the plugin from the plugin website.
- Deactivate and delete the existing plugin. Deleting the plugin does not delete your data from the database.
- Upload and activate the downloaded plugin file.
For the Nexter plugin, follow these steps:
1. Visit POSIMYTH Store and log in to your account. Use the same login details you used on the checkout page.
2. Click on the Dashboard link.
3. From the Dashboard, go to the Downloads section. You will see a list of plugins based on your purchases. Find Nexter Blocks or Nexter Extension (whichever you need) and click the Download button for the latest version. The plugin file will be downloaded to your system’s default download folder.
4. Open your WordPress Dashboard and go to Plugins. Deactivate and delete the existing version of Nexter Blocks or Nexter Extension Pro. Deleting the plugin will not delete your data.
5. Click on Add New Plugin > Upload Plugin. Click Choose File, upload your plugin file, then click Install Now.
6. Once the plugin is installed, click on Activate Plugin on the next page.
