EVENTS tab display error ["select_nodes" ["<" "report_timestamp" "2017-02-07T13:38:28.066Z"]] is not well-formed: query operator 'select_nodes' is unknown

[ocontant]

I have an error under EVENTS where no data is showing and this error message is displayed:

################
["select_nodes" ["<" "report_timestamp" "2017-02-07T13:38:28.066Z"]] is not well-formed: query operator 'select_nodes' is unknown
################

puppet-2016.5.1-learning-5.9 VM
puppetexplorer 2.0.0 from CentOS 7 Yum repository

---

vhost.conf
root@puppetmaster:~ # cat /etc/httpd/conf.d/puppetexplorer.conf
<VirtualHost *:8443>
ServerName puppetmaster.localdomain.loc
ServerAlias puppetmaster

Vhost docroot

DocumentRoot "/usr/share/puppetexplorer"

Directories, there should at least be a declaration for /usr/share/puppetexplorer

<Directory "/usr/share/puppetexplorer">
Options Indexes FollowSymLinks MultiViews
AllowOverride None
Require all granted

Logging

ErrorLog "/var/log/httpd/puppetexplorer_error_ssl.log"
ServerSignature Off
CustomLog "/var/log/httpd/puppetexplorer.log" combined

PuppetDB 4 support

RewriteEngine On
RewriteRule ^/api/metrics/v1/mbeans/puppetlabs.puppetdb.query.population:type=default,name=(.*)$ https://%{HTTP_HOST}/api/metrics/v1/mbeans/puppetlabs.puppetdb.population:name=$1 [R=301,L]

Proxy rules

ProxyRequests Off

ProxyPass /api/pdb/query http://localhost:8080/pdb/query
<Location /api/pdb/query>
ProxyPassReverse http://localhost:8080/pdb/query

ProxyPass /api/pdb/meta http://localhost:8080/pdb/meta
<Location /pdb/meta>
ProxyPassReverse http://localhost:8080/pdb/meta

ProxyPass /api/metrics/v1/mbeans http://localhost:8080/metrics/v1/mbeans
<Location /api/metrics/v1/mbeans>
ProxyPassReverse http://localhost:8080/metrics/v1/mbeans

SSL directives

SSLEngine on
SSLCertificateFile "/etc/puppetlabs/puppet/ssl/certs/learning.puppetlabs.vm.pem"
SSLCertificateKeyFile "/etc/puppetlabs/puppet/ssl/private_keys/learning.puppetlabs.vm.pem"
SSLCACertificatepath "/etc/puppetlabs/puppet/ssl/certs"

SSLProxyEngine On
SSLProtocol All -SSLv2 -SSLv3 -TLSv1
SSLCipherSuite ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!3DES:!MD5:!PSK

---

puppetexplorer/config.js

root@puppetmaster:~ # cat /usr/share/puppetexplorer/config.js
// List of PuppetDB servers, pairs of name, URL and $http config object
// The first one will be used as the default server
PUPPETDB_SERVERS = [
['production', '/api']
// ['testing', '/']
];

// A list of important facts that you want shown in the node detail view
NODE_FACTS = [
'operatingsystem',
'operatingsystemrelease',
'manufacturer',
'productname',
'processorcount',
'memorytotal',
'ipaddress'
];

// The amount of hours since the last check-in after which a node is considered
// unresponsive
UNRESPONSIVE_HOURS = 2;

// Customisable dashboard panels
// type can be either 'primary', 'success', 'info', 'warning' or 'danger'
// Different types will be displayed with different colors
DASHBOARD_PANELS = [
{
name: 'Unresponsive nodes',
type: 'danger',
query: '#node.report_timestamp < @"now - 2 hours"'
},
{
name: 'Nodes in production env',
type: 'success',
query: '#node.catalog_environment = production'
},
{
name: 'Nodes in non-production env',
type: 'warning',
query: '#node.catalog_environment != production'
}
];

// Google Analytics settings
// GA_TRACKING_ID = 'UA-XXXXXXXX-YY';
// GA_DOMAIN = 'auto';