Error when create Avatar extra field

Hello,

I created an extra field for Avatar image upload.
In the front end user profile edit page i have this error in the AVatar section:

Fatal error: Call to undefined function get_user_to_edit() in …/plugins/cimy-user-extra-fields/cimy_uef_profile.php on line 370

https://wordpress.org/plugins/cimy-user-extra-fields/