This thread is resolved. Here is a description of the problem and solution.
Problem:
The client is experiencing a warning in the admin panel: 'Undefined array key 1' in the file
/wp-includes/l10n/class-wp-translation-file-mo.php
. This issue typically indicates that the code is trying to access an array index that doesn't exist, possibly related to how translation files are being processed.
Solution:
We recommend deactivating WPML and its addons to check if the issue persists. If it does, deactivate all other plugins and switch to a default theme like Twenty Twenty-One to further isolate the issue. If deactivating resolves the problem, reactivate each plugin and theme one by one to pinpoint the cause. If the warning is not critical, you can also disable WordPress debugging to hide these warnings. For more details on WordPress debugging, please visit: Debugging in WordPress.
If this solution does not apply to your case, or if it seems outdated, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have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. Should you need further assistance, please feel free to 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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This topic contains 1 reply, has 2 voices.
Last updated by 5 months, 1 week ago.
Assisted by: Prosenjit Barman.
