Odd data saved to CFDB on the ReCaptcha field-not spam

Hello,

I’m testing a new simple contact us form which I’ve created in Contact Form 7 with it’s own recaptcha field. On submiting the form and checking the recaptcha field I get odd gibrish data in the CFDB :

VntzxbyKJ1IEqVpr8f2xGZ1OSbAdAaWS4UkjqV9NkLvbDjs0XuLktotXAg_Xggc3syMtHT5k0iJM3fuGZID1uPsZyTj0BCaEizzpBPXTYEK9l4P2F689s6zUnMd1mnacZUWlNfRuqyksENdqdEp5EscBxXPx9hyXrmZNcqMTKP3AqI5ifc3AiqWqbMKNOHDFU8TBwH0aaBEqlQG0yDdA5Uh_zYqHKGUMLojtnEYGgIrJFeBTLU_6boN_cBXYE306BIKdGPnAXxRpFhIyLxssSeQdPFRGynnt3vrmvqt99sLaDqvZN4Hm1Tb11SMbbmPnGoXb5ENhcGqxpTHKhYXlWOvTNoI68Szo9Uf7peai3hHDsGGqtMV5Q8zfq25n0NwURMVKIQL2RiXOJsMWR5OKX_JOvUCwICfWG2RhifZbMG86yqtHfVC5xALY7T9QM0nTrO8JFOTaAtPqkpjzDYufgJlD15lyX7vq9AroNuR0nNWckgxWC1gLr5BigyfavsL0jMSi8v6f2rk-

The title of the field is : g-recaptcha-response

I can’t delete this field and I need to delete all the row in order to get rid of it.

The site is not “on air” yet but I need to know how to solve this issue, or not to use the recaptcha field.

Thank you.

https://wordpress.org/plugins/contact-form-7-to-database-extension/