Not Working For Unknown Reason

Not sure what I’m doing wrong… I installed it fine, but no minlength shows up when I try to create a Text Field. I made sure that my Contact Form 7 is up to date, as well as my theme (salient) and I’m on WordPress 4.0.

Looking forward to hearing from you soon!

Thank you,
Nick

https://ww.wp.xz.cn/plugins/minimum-length-for-contact-form-7/