Understanding Mapael Maps

When I can the config.php to include the sample line of code from https://docs.librenms.org/#Extensions/World-Map/
$config[‘map’][‘engine’] = “jquery-mapael”;
$config[‘mapael’][‘default_map’] = ‘mapael-maps/united_kingdom/united_kingdom.js’;
$config[‘mapael’][‘map_width’] = 400;
$config[‘mapael’][‘default_lat’] = ‘50.898482’;
$config[‘mapael’][‘default_lng’] = ‘-3.401402’;
$config[‘mapael’][‘default_zoom’] = 20;

I get this error in World Maps Widget on Dashboard “Mapael engine not supported here”
What am I doing wrong

LibreNMS | 1.38-7-gee2bb8e
DB Schema | 247
PHP | 7.0.28-0ubuntu0.16.04.1
MySQL | 10.0.34-MariaDB-0ubuntu0.16.04.1
RRDTool | 1.5.5

[OK] Composer Version: 1.6.3
[OK] Dependencies up-to-date.
[OK] Database connection successful
[FAIL] Database: incorrect column (notifications/datetime)
[FAIL] Database: incorrect column (users/created_at)
[FAIL] We have detected that your database schema may be wrong, please report the following to us on IRC or the community site (https://t.libren.ms/5gscd):
[FIX] Run the following SQL statements to fix.
SQL Statements:
ALTER TABLE notifications CHANGE datetime datetime timestamp NOT NULL DEFAULT ‘1970-01-02 00:00:00’ ;
ALTER TABLE users CHANGE created_at created_at timestamp NOT NULL DEFAULT ‘1970-01-02 00:00:01’ ;
[WARN] Some devices have not been polled in the last 5 minutes. You may have performance issues.
[FIX] Check your poll log and see: http://docs.librenms.org/Support/Performance/

[WARN] Your local git contains modified files, this could prevent automatic updates.
[FIX] You can fix this with ./scripts/github-remove
Modified Files:

It’s exactly as the error says, that mapping engine isn’t supported on the dashboard.