Perch Blog is giving an "Undefined index: postDateTime" error

Recently, while creating a temple for my new Perch Blog, I've been getting this error:

Notice: Undefined index: postDateTime in....\perch\addons\apps\perch_blog\PerchBlog_Post.class.php on line 92

The editor does not seem to recognize any changes I make to the template, although they are reflected in the blog itself when I refresh the page. How do I go about solving this?

Perch Template

<div class="tile-content v-spacing-sm col-xs-12">

  <div class="col-xs-12 blog_post_head">
      <div class="col-xs-1 text-center blog_post_big_date">
          <h3><perch:blog id="postDateTime" format="d" /></h3>
          <p><perch:blog id="postDateTime" format="M" /></p>
      </div>

      <div class="col-xs-10 blog_post_body_head">
          <h3 class="entry-title">
            <perch:blog id="postTitle" label="Post Title" />
          </h3>
          <span>Tags: <perch:blog id="postTags" label="Post Tags" /></span>
          <hr>
      </div>
  </div><!--Close blog_post_head-->

  <div class="col-xs-12 blog_post_content">
    <div class="col-xs-10 col-xs-offset-1 blog_post_body">

      <div>
        <img src="<perch:blog id="cover_img" type="image label="Cover Image" />" class="width_full" />
      </div>

      <hr>

      <div class="post_published_date">
        <p>Published: <perch:blog id="postDateTime" format="M d Y" /> @ <perch:blog id="postDateTime" format="H:i" /></p>
      </div>

      <div class="post_text">
        <perch:blog id="body" type="textarea" label="Post Body" editor="redactor" html="true" size="xl" />
      </div>

    </div><!--Close blog_post_body-->


    <div class="col-xs-10 col-xs-offset-1 v_spacing_sm blog_post_foot">

      <div class="float_left">
        <a href="#"><img src="images/pe_icon_sm_facebook.png" class="post_inline_socialmedia" /></a>
        <a href="#"><img src="images/pe_icon_sm_googleplus.png" class="post_inline_socialmedia" /></a>
        <a href="#"><img src="images/pe_icon_sm_twitter.png" class="post_inline_socialmedia" /></a>
        <a href="#"><img src="images/pe_icon_sm_email.png" class="post_inline_socialmedia" /></a>
      </div>

      <div class="col-xs-4 float_right">
        <a href="#list_to_post">
          <button class="btn btn-default btn-warning btn-block">Read More...</button>
        </a>
      </div>

    </div><!--Close blog_post_foot-->


  </div><!--Close blog_post_content-->

</div>

DIAGNOSTICS:

SELECT u.*, r.* FROM perch2_users u, perch2_user_roles r
WHERE u.roleID=r.roleID AND u.userEnabled='1' AND u.userID=1 AND u.userHash='385b3fb40922abc4164d33a31122c09b'
LIMIT 1
UPDATE perch2_users SET userHash='6ed1025007772c64ecb0b14be12c1886' WHERE userID=1
SELECT p.privKey FROM perch2_users u, perch2_user_role_privileges rp, perch2_user_privileges p
WHERE u.roleID=rp.roleID AND rp.privID=p.privID AND u.userID=1
SELECT * FROM (SELECT DISTINCT settingID, settingValue FROM perch2_settings WHERE userID=1 OR userID=0 ORDER BY userID DESC) AS settings GROUP BY settingID
SELECT * 
FROM perch2_blog_categories ORDER BY categoryTitle ASC
SELECT * FROM perch2_blog_authors WHERE authorEmail='mjb28@njit.edu' LIMIT 1
SELECT * 
FROM perch2_blog_sections ORDER BY sectionTitle ASC
SELECT * FROM perch2_blog_posts WHERE postID=1
SELECT categoryID FROM perch2_blog_posts_to_categories WHERE postID = 1
Using template: \templates\blog\post.html
Array
(
    [postTags] => birds, dogs, peckers
    [postTemplate] => post.html
    [authorID] => 2
    [postStatus] => Published
    [postID] => 1
    [btnSubmit] => Save
    [formaction] => perch_blog
    [token] => 9097ec14f102574889a0052945c2e733
)


Array
(
)


Array
(
    [postTags] => birds, dogs, peckers
    [postStatus] => Published
    [postTemplate] => post.html
    [authorID] => 2
    [postAllowComments] => 0
    [postDynamicFields] => []
    [postTitle] => Post 1
)


UPDATE perch2_blog_posts SET postTags='birds, dogs, peckers', postStatus='Published', postTemplate='post.html', authorID='2', postAllowComments='0', postDynamicFields='[]', postTitle='Post 1' WHERE postID=1
UPDATE perch2_blog_posts SET postTags='birds, dogs, peckers', postStatus='Published', postTemplate='post.html', authorID='2', postAllowComments='0', postDynamicFields='[]', postTitle='Post 1', postSlug='1970-01-01-post-1' WHERE postID=1
DELETE FROM perch2_blog_posts_to_categories WHERE postID='1'
DELETE FROM perch2_blog_posts_to_tags WHERE postID='1'
SELECT tagID, tagTitle FROM perch2_blog_tags WHERE tagTitle = 'birds' LIMIT 1
INSERT INTO perch2_blog_posts_to_tags(postID,tagID) VALUES('1','1')
SELECT tagID, tagTitle FROM perch2_blog_tags WHERE tagTitle = 'dogs' LIMIT 1
INSERT INTO perch2_blog_posts_to_tags(postID,tagID) VALUES('1','2')
SELECT tagID, tagTitle FROM perch2_blog_tags WHERE tagTitle = 'peckers' LIMIT 1
INSERT INTO perch2_blog_posts_to_tags(postID,tagID) VALUES('1','3')
SELECT c.categoryID, COUNT(p2c.postID) AS qty
FROM perch2_blog_categories c, perch2_blog_posts_to_categories p2c, perch2_blog_posts p
WHERE p2c.categoryID=c.categoryID AND p2c.postID=p.postID
AND p.postStatus='Published' AND p.postDateTime<='2014-06-24 13:20:00' 
GROUP BY c.categoryID
ORDER BY c.categoryTitle ASC
SELECT authorID, COUNT(*) AS qty
FROM perch2_blog_posts 
WHERE postStatus='Published' AND postDateTime<='2014-06-24 13:20:00' 
GROUP BY authorID
UPDATE perch2_blog_authors SET authorPostCount=0
UPDATE perch2_blog_authors SET authorPostCount='1' WHERE authorID='1' LIMIT 1
UPDATE perch2_blog_authors SET authorPostCount='1' WHERE authorID='2' LIMIT 1
SELECT c.sectionID, COUNT(p.postID) AS qty
FROM perch2_blog_sections c, perch2_blog_posts p
WHERE c.sectionID=p.sectionID
AND p.postStatus='Published' AND p.postDateTime<='2014-06-24 13:20:00' 
GROUP BY c.sectionID
ORDER BY c.sectionTitle ASC
UPDATE perch2_blog_sections SET sectionPostCount=0
UPDATE perch2_blog_sections SET sectionPostCount='2' WHERE sectionID='1' LIMIT 1
SELECT COUNT(*) FROM perch2_blog_comments WHERE commentStatus='PENDING'
SELECT * 
FROM perch2_blog_authors ORDER BY authorFamilyName, authorGivenName ASC
Queries: 42
Array
(
    [type] => 8
    [message] => Undefined index: postDateTime
    [file] => C:\wamp\www\ll\leewardtwo\web\perch\addons\apps\perch_blog\PerchBlog_Post.class.php
    [line] => 92
)






PERCH INFORMATION

Perch: 2.4.9
Production mode: Production (100)
Installed apps: content (2.4.9), perch_mailchimp (2.0.1), perch_blog (4.0.3)
DB driver: PDO
DB tables: chat_logs, designer_floorplans, designer_floorplans_rooms, designer_items, designer_items_options, designer_options, designer_roomoptions, designer_rooms, designer_rooms_items, document_files, document_folders, perch2_blog_authors, perch2_blog_categories, perch2_blog_comments, perch2_blog_posts, perch2_blog_posts_to_categories, perch2_blog_posts_to_tags, perch2_blog_sections, perch2_blog_tags, perch2_content_index, perch2_content_items, perch2_content_regions, perch2_content_resources, perch2_mailchimp_campaigns, perch2_mailchimp_history, perch2_mailchimp_log, perch2_mailchimp_stats, perch2_mailchimp_subscribers, perch2_navigation, perch2_navigation_pages, perch2_page_templates, perch2_pages, perch2_resources, perch2_settings, perch2_user_privileges, perch2_user_role_privileges, perch2_user_roles, perch2_users, photo_albums, photo_images, punchlist_categories, punchlist_dependencies, punchlist_entries, punchlist_items, roles, tasks, timetrack_categories, timetrack_entries, timetrack_tasks, user_choices, user_designs, users, users_roles
Users: 3
App runtimes:
<?php
    include(PERCH_PATH.'/core/apps/content/runtime.php');
    include(PERCH_PATH.'/addons/apps/perch_blog/runtime.php');
    include(PERCH_PATH.'/addons/apps/perch_mailchimp/runtime.php');
?>
Scheduled tasks for perch_blog: delete_spam_comments (1440 mins)
Scheduled tasks for perch_mailchimp: update_list_stats (60 mins)
Editor plug-ins: markitup, redactor
H1: 421aa90e079fa326b6494f812ad13e79
L1: 60819fd8683469ce7fc6e95de3fad8e9
headerColour: #ffffff
content_singlePageEdit: 1
helpURL:
siteURL: /
hideBranding: 1
content_collapseList: 1
lang: en-gb
update_2.4.9: done
latest_version: 2.3.2
on_sale_version: 2.4.9
perch_blog_post_url: /blog/post.php?s={postSlug}
perch_blog_update: 4.0
headerScheme: light
content_hideNonEditableRegions: 1
content_frontend_edit: 1
perch_blog_slug_format: %Y-%m-%d-{postTitle}
perch_blog_akismet_key:
perch_blog_max_spam_days: 0
dashboard: 0
hide_pwd_reset: 0
perch_blog_comment_notify: 0
perch_mailchimp_secret: 543e5ee6340c972bf6d7f11381eff6d1
perch_mailchimp_update: 2.0
perch_mailchimp_api_key: ec2903384d8dff9758623bdbb48f4db2-us8
perch_mailchimp_list_id: d42b804d21
perch_mailchimp_campaign_url: /mailchimp/campaign.php?s={campaignSlug}
PERCH_DEVELOPMENT: 10
PERCH_STAGING: 50
PERCH_PRODUCTION: 100
PERCH_DB_USERNAME: leewardone
PERCH_DB_SERVER: localhost
PERCH_DB_DATABASE: leewardone
PERCH_DB_PREFIX: perch2_
PERCH_TZ: UTC
PERCH_EMAIL_FROM: mjb28@njit.edu
PERCH_EMAIL_FROM_NAME: Matthew Breau
PERCH_LOGINPATH: /ll/leewardtwo/web/perch
PERCH_PATH: C:\wamp\www\ll\leewardtwo\web\perch
PERCH_CORE: C:\wamp\www\ll\leewardtwo\web\perch\core
PERCH_RESFILEPATH: C:\wamp\www\ll\leewardtwo\web\perch\resources
PERCH_RESPATH: /ll/leewardtwo/web/perch/resources
PERCH_HTML5: 1
PERCH_EMAIL_METHOD: smtp
PERCH_EMAIL_HOST: smtpout.secureserver.net
PERCH_EMAIL_AUTH:
PERCH_DEBUG: 1
PERCH_ERROR_MODE: DIE
PERCH_DATE_LONG: %d %B %Y
PERCH_DATE_SHORT: %d %b %Y
PERCH_TIME_SHORT: %H:%M
PERCH_TIME_LONG: %H:%M:%S
PERCH_PREVIEW_ARG: preview
PERCH_TEMPLATE_PATH: C:\wamp\www\ll\leewardtwo\web\perch\templates
PERCH_DEFAULT_DOC: index.php
PERCH_DEFAULT_EXT: .php
PERCH_PRODUCTION_MODE: 100
PERCH_RWD:
PERCH_HTML_ENTITIES:
PERCH_SSL:
PERCH_AUTH_PLUGIN:
PERCH_DB_CHARSET: utf8
PERCH_DB_PORT:
PERCH_DB_SOCKET:
HOSTING SETTINGS

PHP: 5.4.12
Zend: 2.4.0
OS: WINNT
SAPI: apache2handler
Safe mode: not detected
MySQL client: mysqlnd 5.0.10 - 20111026 - $Id: e707c415db32080b3752b232487a435ee0372157 $
MySQL server: 5.6.12-log
Extensions: Core, bcmath, calendar, com_dotnet, ctype, date, ereg, filter, ftp, hash, iconv, json, mcrypt, SPL, odbc, pcre, Reflection, session, standard, mysqlnd, tokenizer, zip, zlib, libxml, dom, PDO, openssl, SimpleXML, wddx, xml, xmlreader, xmlwriter, apache2handler, gd, mbstring, mysql, mysqli, Phar, pdo_mysql, pdo_sqlite, mhash, xdebug
GD: Yes
ImageMagick: No
PHP max upload size: 2M
PHP max form post size: 8M
PHP memory limit: 128M
Total max uploadable file size: 2M
Resource folder writeable: Yes
Session timeout: 24 minutes
Native JSON: Yes
Filter functions: Yes
Transliteration functions: No
HTTP_HOST: localhost
HTTP_CONNECTION: keep-alive
HTTP_ACCEPT: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
HTTP_USER_AGENT: Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.153 Safari/537.36
HTTP_REFERER: https://localhost/ll/leewardtwo/web/perch/core/settings/
HTTP_ACCEPT_ENCODING: gzip,deflate,sdch
HTTP_ACCEPT_LANGUAGE: en-US,en;q=0.8,fr;q=0.6
HTTP_COOKIE: cmsa=1; _ga=GA1.1.1319817291.1402873230; PHPSESSID=fp20kkvccbb0hv267lt1lnhjj0; cmssb=1
PATH: C:\Program Files (x86)\ActiveState Komodo Edit 8\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\Git\cmd;C:\Program Files (x86)\Git\bin;
SystemRoot: C:\Windows
COMSPEC: C:\Windows\system32\cmd.exe
PATHEXT: .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC
WINDIR: C:\Windows
SERVER_SOFTWARE: Apache/2.4.4 (Win64) PHP/5.4.12
SERVER_NAME: localhost
SERVER_ADDR: ::1
SERVER_PORT: 80
REMOTE_ADDR: ::1
DOCUMENT_ROOT: C:/wamp/www/
REQUEST_SCHEME: http
CONTEXT_DOCUMENT_ROOT: C:/wamp/www/
SERVER_ADMIN: admin@example.com
SCRIPT_FILENAME: C:/wamp/www/ll/leewardtwo/web/perch/core/settings/diagnostics/index.php
REMOTE_PORT: 60789
GATEWAY_INTERFACE: CGI/1.1
SERVER_PROTOCOL: HTTP/1.1
REQUEST_METHOD: GET
REQUEST_URI: /ll/leewardtwo/web/perch/core/settings/diagnostics/
SCRIPT_NAME: /ll/leewardtwo/web/perch/core/settings/diagnostics/index.php
PHP_SELF: /ll/leewardtwo/web/perch/core/settings/diagnostics/index.php
REQUEST_TIME_FLOAT: 1403616120.297
REQUEST_TIME: 1403616120