Keeps throwing this error, does not work

When I try and add a new taxomony it gives this:

Array
(
    [0] => WP_Error Object
        (
            [errors] => Array
                (
                    [taxonomy_too_long] => Array
                        (
                            [0] => Taxonomies cannot exceed 32 characters in length
                        )

                )

            [error_data] => Array
                (
                )

        )

)

Only way to stop it doing that, and get back into the admin UI, is to delete the plugin by FTP.

https://ww.wp.xz.cn/plugins/user-tags/