Rendering Error in layout Widget/Menu: Unsupported operand types....

Bonjour,

Aujourd'hui j'ai ajouté 4 sous-rubriques à mon forum. J'ai ensuite créé  4 nouveaux liens, cachés, de menu. J'ai dupliqué le template du forum pour inverser les couleurs de fond et d'écriture. J'ai ensuite appliqué ce nouveau template aux 4 nouveaux liens de forum.

Je n'ai touché à rien d'autre. Et pourtant, depuis, même sur la page de l'index du forum que je n'ai pas touché, apparaît le message

    Rendering Error in layout Widget/Menu: Unsupported operand types. Please enable debug mode for more information.

    et celui-ci en mode déboguage :

   Rendering Error in layout Widget/Menu: Unsupported operand types in /homepages/40/d432291893/htdocs/site/libraries/kunena/layout/base.php on line 168
   Layout was rendered in /homepages/40/d432291893/htdocs/site/libraries/kunena/layout/layout.php on line 80

J'ai trouvé ça www.kunena.org/forum/general-questions-a...-types-please-enable , mais aussi ça github.com/Kunena/Kunena-Forum/issues/5923 et même ça member.joomforest.com/forum/jf-simone-ku...8806-rendering-error mais je ne comprends rien.

Mon Joomla est à jour, 3.9.27, Kunena ne l'était pas, 5.2.3, mais même à jour, 5.2.5, il présente la même erreur.

Auriez vous une idée pour résoudre ce problème svp ?

Merci beaucoup. 

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1116	Forum NatSO 2022  GEC	menu-forum	view=category&catid=17	forum/forum-natso-2022-gec	No
1117	Forum NatSO 2022  Restauration	menu-forum	view=category&catid=19	forum/forum-natso-2022-restauration	No
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1049	Recherche	kunenamenu	view=search	kunena/recherche	No

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Joomla! languages installed:
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fr-FR	French (France)

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Bon. Après plus de 2h de recherches infructueuse et près de 30 minutes après le début d'écriture de mon appel à l'aide : j'ai trouvé. Il s'agit du dernier lien de menu qui permet de retourner à l'accueil du site qui n'est plus accepté.

Si ça peut aider des infortunés, il suffit juste de le dépublier pour que tout rentre dans l'ordre.

Merci et bonne soirée.