I appreciate your diligence in bringing these issues to our attention. I understand the importance of resolving deprecated code errors.
Upon reviewing the error messages you provided, it appears that the WP User Frontend plugin is utilizing deprecated code in various files. Rest assured, we take this matter seriously and are committed to addressing and resolving these issues promptly.
I have forwarded the details to our development team, and they are currently investigating the codebase to identify and rectify the deprecated code instances.
If you have any further concerns, please feel free to reach out.