Error Getting Zoho Client ID on Developer Console

Error Getting Zoho Client ID on Developer Console

Hi, 

I'm trying to create a client ID at ( https://accounts.zoho.com/developerconsole) to be used for the wordpress Zoho mail plugin, but i get the error when push the button "Create" 
The error is " Une erreur s’est produite" (in french) no more details are given. 
Is this normal? Is it always possible to get a client id with free plan account ?