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This thread is resolved. Here is a description of the problem and solution.

Problem:
You are migrating from one server to another with the same domain and encountering a 401 error when trying to save a translation after registering the WPML plugin.
Solution:
1. Ensure you have completed the migration banner at WPML > Settings by selecting that you moved the site to a new location.
2. WPML must be re-registered after every server change. Follow these steps:
- Visit https://wpml.org/de/account/websites/
- If the site URL is already registered, delete it from the list.
- Re-enter the site URL to create a new site key.
- Click on "Show key" and copy it.
- Go to Plugins > Install > Commercial (tab) and enter the key to re-register WPML. If WPML is still registered, de-register it first.
If after following these steps the problem persists, we recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If the issue still remains unresolved, please open a new support ticket at WPML support forum.

This is the technical support forum for WPML - the multilingual WordPress plugin.

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Last updated by Andreas W. 6 months, 1 week ago.

Assisted by: Andreas W..

Author Posts
February 21, 2025 at 10:57 pm #16735449
February 22, 2025 at 10:07 pm #16737027

Andreas W.
WPML Supporter since 12/2018

Languages: English (English ) Spanish (Español ) German (Deutsch )

Timezone: America/Lima (GMT-05:00)

Hello,

Did you already complete the migration banner at WPML > Settings? Make sure to select that you moved the site to a new location.

IMPORTANT:
WPML must be re-registered after every server change or after changing the domain or domain provider.

1) Go to https://wpml.org/de/account/websites/

2) If the site URL is already registered, delete it from the list.

3) Now enter the site URL again. This creates a new site key.

4) Click on "Show key" and copy it.

5) Enter the key under Plugins > Install > Commercial (tab) to re-register WPML. If WPML is still registered here, de-register it first.

If the problem persists, please let me know.

Best regards
Andreas