There was a connection issue.
PDOException Object
(
    [message:protected] => SQLSTATE[HY000] [1040] Too many connections
    [string:Exception:private] => 
    [code:protected] => 1040
    [file:protected] => /tank/www/users/aea2/versions/20190930_1256/public/rfe/rfe_includes/db/connection.php
    [line:protected] => 25
    [trace:Exception:private] => Array
        (
            [0] => Array
                (
                    [file] => /tank/www/users/aea2/versions/20190930_1256/public/rfe/rfe_includes/db/connection.php
                    [line] => 25
                    [function] => __construct
                    [class] => PDO
                    [type] => ->
                    [args] => Array
                        (
                            [0] => mysql:host=66.39.137.99:3306;dbname=rfe
                            [1] => bgoffe
                            [2] => Q997NsNh9rBt
                        )

                )

            [1] => Array
                (
                    [file] => /tank/www/users/aea2/versions/20190930_1256/public/rfe/dbconn.php
                    [line] => 38
                    [function] => init
                    [class] => DBConn
                    [type] => ::
                    [args] => Array
                        (
                            [0] => 66.39.137.99:3306
                            [1] => bgoffe
                            [2] => Q997NsNh9rBt
                            [3] => rfe
                        )

                )

            [2] => Array
                (
                    [file] => /tank/www/users/aea2/versions/20190930_1256/public/rfe/showRes_src.php
                    [line] => 3
                    [args] => Array
                        (
                            [0] => /tank/www/users/aea2/versions/20190930_1256/public/rfe/dbconn.php
                        )

                    [function] => include
                )

            [3] => Array
                (
                    [file] => /tank/www/users/aea2/versions/20190930_1256/public/rfe/showRes.php
                    [line] => 38
                    [args] => Array
                        (
                            [0] => /tank/www/users/aea2/versions/20190930_1256/public/rfe/showRes_src.php
                        )

                    [function] => require_once
                )

        )

    [previous:Exception:private] => 
    [errorInfo] => 
)