PHP Error in Admin

I am getting the following error when trying to create or save a blog post. Any ideas on what the fix is?

 Fatal error: Call to a member function return_instance() on a non-object in /home/fcctc/public_html/admin/core/lib/api/PerchAPI_Form.class.php on line 415

Here is my diagnostics report.

Viewing Diagnostic Information
Diagnostics report
Perch information

    Perch: 2.8.6
    Production mode: Production (100)
    Installed apps: content (2.8.6), assets (2.8.6), categories (2.8.6), perch_blog (4.5.4), perch_forms (1.7), ui_snipcart (1), perch_members (1.0.3)
    DB driver: PDO
    DB tables: perch2_blog_authors, perch2_blog_comments, perch2_blog_index, perch2_blog_posts, perch2_blog_posts_to_tags, perch2_blog_sections, perch2_blog_tags, perch2_categories, perch2_category_counts, perch2_category_sets, perch2_content_index, perch2_content_items, perch2_content_regions, perch2_forms, perch2_forms_responses, perch2_members, perch2_members_forms, perch2_members_member_tags, perch2_members_sessions, perch2_members_tags, perch2_navigation, perch2_navigation_pages, perch2_page_templates, perch2_pages, perch2_podcasts, perch2_podcasts_downloads, perch2_podcasts_episodes, perch2_resource_log, perch2_resource_tags, perch2_resources, perch2_resources_to_tags, perch2_settings, perch2_ui_snipcart_shop, perch2_user_privileges, perch2_user_role_privileges, perch2_user_roles, perch2_users
    Users: 5
    App runtimes:

    <?php
        $apps_list = array(
            'content', 
            'categories',
            'perch_forms',
            'perch_blog',
            'perch_members',
            'ui_snipcart',
        );

    Scheduled tasks for perch_blog: delete_spam_comments (1440 mins)
    Editor plug-ins: markitup
    H1: 58eb1a76fcb0b43069932298ea9b5aee
    L1: 77feeafe6345389cb910221ca0172dd7
    headerColour: #31a5bd
    content_singlePageEdit: 1
    helpURL: mailto:info@unleashedideas.com
    siteURL: https://www.fcctc.org
    hideBranding: 1
    content_collapseList: 1
    lang: en-gb
    update_2.6.6: done
    latest_version: 2.8
    on_sale_version: 2.8.6
    headerScheme: dark
    content_hideNonEditableRegions: 1
    content_frontend_edit: 1
    dashboard: 0
    hide_pwd_reset: 0
    perch_blog_update: 5.0
    perch_blog_post_url: /blog/{postSlug}
    perch_blog_slug_format: %Y-%m-%d-{postTitle}
    perch_blog_akismet_key:
    perch_blog_max_spam_days: 0
    perch_blog_comment_notify: 0
    logoPath: /uploads/fcctc-logo.png
    update_2.7: done
    update_2.7.4: done
    perch_members_login_page: /members/login.php?r={returnURL}
    update_2.8.6: done
    ui_snipcart_key: ZWM3N2UyMzgtYjI3MC00MGM2LWJhNTItMjdkNGVmMWEzMzdh
    ui_snipcart_secret_key: ST_YTY1NDE3YjUtYTZlYS00OWVhLWEwOTctNWYzY2VhZGQwZTNi
    PERCH_DEVELOPMENT: 10
    PERCH_STAGING: 50
    PERCH_PRODUCTION: 100
    PERCH_DB_USERNAME: fcctc_user
    PERCH_DB_SERVER: localhost
    PERCH_DB_DATABASE: fcctc_perch
    PERCH_DB_PREFIX: perch2_
    PERCH_TZ: America/New_York
    PERCH_EMAIL_FROM: info@unleashedideas.com
    PERCH_EMAIL_FROM_NAME: Unleashed Ideas
    PERCH_LOGINPATH: /admin
    PERCH_PATH: /home/fcctc/public_html/admin
    PERCH_CORE: /home/fcctc/public_html/admin/core
    PERCH_RESFILEPATH: /home/fcctc/public_html/uploads
    PERCH_RESPATH: /uploads
    PERCH_HTML5: 1
    PERCH_RUNWAY:
    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_DEBUG:
    PERCH_PREVIEW_ARG: preview
    PERCH_TEMPLATE_PATH: /home/fcctc/public_html/admin/templates
    PERCH_DEFAULT_DOC: index.php
    PERCH_DEFAULT_EXT: .php
    PERCH_PRODUCTION_MODE: 100
    PERCH_RWD:
    PERCH_HTML_ENTITIES:
    PERCH_SSL:
    PERCH_STRIPSLASHES:
    PERCH_PROGRESSIVE_FLUSH: 1
    PERCH_AUTH_PLUGIN:
    PERCH_DB_CHARSET: utf8
    PERCH_DB_PORT:
    PERCH_DB_SOCKET:

Hosting settings

    PHP: 5.4.39
    Zend: 2.4.0
    OS: Linux
    SAPI: apache2handler
    Safe mode: not detected
    MySQL client: mysqlnd 5.0.10 - 20111026 - $Id: c85105d7c6f7d70d609bb4c000257868a40840ab $
    MySQL server: 5.5.42-cll
    Extensions: Core, date, ereg, libxml, openssl, pcre, sqlite3, zlib, bcmath, calendar, ctype, curl, dom, filter, ftp, gd, hash, iconv, SPL, json, mbstring, mcrypt, session, mysql, standard, Phar, posix, Reflection, mysqlnd, SimpleXML, sockets, imap, tokenizer, xml, xmlreader, xmlwriter, zip, apache2handler, PDO, pdo_sqlite, pdo_mysql, Zend Guard Loader
    GD: Yes
    ImageMagick: No
    PHP max upload size: 8M
    PHP max form post size: 8M
    PHP memory limit: 64M
    Total max uploadable file size: 8M
    Resource folder writeable: Yes
    Session timeout: 24 minutes
    Native JSON: Yes
    Filter functions: Yes
    Transliteration functions: No
    HTTP_HOST: www.fcctc.org
    HTTP_USER_AGENT: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:37.0) Gecko/20100101 Firefox/37.0
    HTTP_ACCEPT: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
    HTTP_ACCEPT_LANGUAGE: en-US,en;q=0.5
    HTTP_ACCEPT_ENCODING: gzip, deflate
    HTTP_REFERER: https://www.fcctc.org/admin/core/settings/diagnostics/
    HTTP_COOKIE: _ga=GA1.2.1402089605.1416880332; _jsuid=2061266171; cmsa=1; PHPSESSID=f0c92974057f290c8bea76e75a6f70e8
    HTTP_CONNECTION: keep-alive
    PATH: /sbin:/usr/sbin:/bin:/usr/bin
    SERVER_SIGNATURE: <address>Apache/2.2.29 (Unix) mod_ssl/2.2.29 OpenSSL/1.0.1e-fips mod_bwlimited/1.4 PHP/5.4.39 Server at www.fcctc.org Port 80</address>
    SERVER_SOFTWARE: Apache/2.2.29 (Unix) mod_ssl/2.2.29 OpenSSL/1.0.1e-fips mod_bwlimited/1.4 PHP/5.4.39
    SERVER_NAME: www.fcctc.org
    SERVER_ADDR: 64.131.68.127
    SERVER_PORT: 80
    REMOTE_ADDR: 65.25.124.185
    DOCUMENT_ROOT: /home/fcctc/public_html
    SERVER_ADMIN: webmaster@fcctc.org
    SCRIPT_FILENAME: /home/fcctc/public_html/admin/core/settings/diagnostics/index.php
    REMOTE_PORT: 44540
    GATEWAY_INTERFACE: CGI/1.1
    SERVER_PROTOCOL: HTTP/1.1
    REQUEST_METHOD: GET
    QUERY_STRING: extended
    REQUEST_URI: /admin/core/settings/diagnostics/?extended
    SCRIPT_NAME: /admin/core/settings/diagnostics/index.php
    PHP_SELF: /admin/core/settings/diagnostics/index.php
    REQUEST_TIME_FLOAT: 1432154305.04
    REQUEST_TIME: 1432154305
    argc: 1