Suscriptors can modify SEO data

Hi, I’m using WordPress 3.8 and SEO WordPress plugin 3.0.1
https://capscorrales.com.ar (now under maintenance mode)
Plugins works flawlessly! Excellent job.

Several people will access this blog and some of them will be just suscriptors.
I found that any suscriptor can modify SEO data from plugin panel.
And that’s not good at least for me.

This is a screenshot, accesing blog as “Personal” user, suscriptor level:
https://drive.google.com/file/d/0B92Xbjcc4i10ejdzdm9TQnI0Rjg/edit?usp=sharing

Thanks in advance

https://www.ads-software.com/plugins/seo-wordpress/