WP 6.7 - Function load_plugin_textdomain was called incorrectly

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Description

In WP 6.7 :

Function load_plugin_textdomain was called incorrectly. Attempted to load translations for the gp-premium domain too early. Translations should be loaded after the after_setup_theme action has fired, to ensure that the current user is already set up. (This message was added in version 6.7.0.)

Original support topic:

https://generate.support/topic/function-load_plugin_textdomain-was-called-incorrectly/#post-134536