[help] Please

greetings,
I communicate with you for the purpose of notifying a problem that I arose me. It happens that the field name change suddenly. now displayed instead of the name field, the lastname field.
how could I fix this problem?
sorry for my bad English

I attached a picture indicating the field to change ...
ndo el campo que cambio...

Hi and welcome to our forums!

I have moved your first post out of the Potential Bug area because the post does not follow the guideline here:

www.joomlapolis.com/forum/147-potential-bug/226964-read-before-posting

Suggest you search and download the also free CB Primer Book and study it.
It may help you figure out what you did wrong.