No history, no possibily to write

I happen to me quite often : image

In the console I get this error :

Erreur d’analyse XML : erreur de syntaxe
Emplacement : https://alpha.happy-dev.fr/circle/@https~@~_~_api~!alpha~!happy-dev~!fr~_circles~_30~_#
Numéro de ligne 1, Colonne 1 :

Maybe the issue is already open ?

Edited by Rachel