Regular expression is not work with the email

Hello everyone, I hope someone else can I help me please.

I have created a flow where with a regular expression I look for the subject in the mail

and I have another regular expression where the body of the mail should only bring me these values

All the expresion regular it’s working OK but i have this error

However, I do not know why? I can not get the value of the regular expression with.
I would greatly appreciate your help

this is my set

Hi - Change the type of the variable grupo1 to String.


HI, nitehn I have change this but dont working.