Validation IsEmail Error

[bonghetti]

When I try to insert email validation in a text field, I encounter the following error: "0 count(): Argument #1 ($value) must be of type Countable|array, string given."

 

[achartier]

Joomla, Fabrik, PHP versions?

Can you turn Joomla debug on and set error reporting to maximim, and then try it. Please post the full call stack.