Unless we come to know the details of the error message you are getting we feel similar helplessness as you do.
You may have a trouble with a plugin. Deactivate the latests you've installed to find which is doing this error.
I deleted a plugin always the problem
(2019-05-20, 10:30 AM)Crazycat Wrote: [ -> ]Vous pouvez avoir un problème avec un plug - in. Désactiver les actus que vous avez installé pour trouver qui est en train de faire cette erreur.
le même code d'erreur
Open your member_register
template.
If you find anything like {$captcha}
(most probably near line number 38)
Then change that to {$hiddencaptcha}
and save the template.