Mise à jour 4.12 / Message pour info, pas bloquant

WARNING: /tmp/templates_c/08/086087ec6b1f49536aca0dde3949a877ff4f4f1d35c2087ab45bea9f74ddf14d.php(48): Notice - Array to string conversion - Matomo 4.12.0 - Please report this message in the Matomo forums: https://forum.matomo.org (please do a search first as it might have been reported already) (Module: PrivacyManager, Action: usersOptOut, In CLI mode: false)

Sorry, unfortunately I can not help you. I have the same problem that I get this message.
in Line 48:

echo \Piwik\piwik_escape_filter($this->env, (isset($context["language"]) || array_key_exists("language", $context) ? $context["language"] : (function () { throw new RuntimeError('Variable "language" does not exist.', 2, $this->source); })()), "html", null, true);

When did you notice this? (on which page / action?)

Note:

Issue created:

i encountered the same error message when i clicked save in “Global websites settings.”

it also appears to have added “Array” in the field under “Global list of excluded referrers.”

@ifoundabug
Your bug has already been reported there: