Validator – no problem?

Hello,

I have Contact form 7 in many sites and in the menu i see after Contact the number 1. It said to urge me to validate my forms. I did the validation for several sites, but after validating everything is fine, no error found and the number 1 i gone.

Why it indicated to run the validator, but there was no problem found? Is this because of it had to run 1 time after introduction?

Regards Michel