Update perch - server 500 error

Hi

Im trying to update from Perch: 2.5.4 to the latest version 2.8.26

When i do this i get a server 500 error.

Any ideas why?

PERCH INFORMATION

Perch: 2.5.4 Production mode: Production (100) Installed apps: content (2.5.4), assets (2.5.4), perch_forms (1.7), perch_blog (4.1) DB driver: PDO DB tables: 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_categories, perch2_category_counts, perch2_category_sets, perch2_content_index, perch2_content_items, perch2_content_regions, perch2_forms, perch2_forms_responses, perch2_navigation, perch2_navigation_pages, perch2_page_templates, perch2_pages, perch2_resource_log, perch2_resource_tags, perch2_resources, perch2_resources_to_tags, perch2_settings, perch2_user_passwords, perch2_user_privileges, perch2_user_role_privileges, perch2_user_roles, perch2_users Users: 3 App runtimes: <?php $apps_list = array( 'content', 'perch_blog', 'perch_forms' ); Scheduled tasks for perch_blog: delete_spam_comments (1440 mins) Editor plug-ins: __markitup, ckeditor, markitup H1: b377c07bf93f990f4206263ccc9bf895 L1: 2c8fcd3d44807e6e4604e23685fd9be2 headerColour: #ffffff content_singlePageEdit: 1 helpURL: siteURL: / hideBranding: 1 content_collapseList: 1 lang: en-gb update_2.5.4: done latest_version: 2.8.15 on_sale_version: 2.8.26 headerScheme: light dashboard: 1 hide_pwd_reset: 0 content_hideNonEditableRegions: 0 content_frontend_edit: 0 logoPath: /admin/resources/rooms-logo.png perch_blog_post_url: /blog/post.php?s={postSlug} perch_blog_update: 4.0 update_2.8.26: done PERCH_DEVELOPMENT: 10 PERCH_STAGING: 50 PERCH_PRODUCTION: 100 PERCH_DB_USERNAME: cl54-roomsdb PERCH_DB_SERVER: localhost PERCH_DB_DATABASE: cl54-roomsdb PERCH_DB_PREFIX: perch2_ PERCH_TZ: UTC PERCH_EMAIL_FROM: langleyp@hotmail.com PERCH_EMAIL_FROM_NAME: Paul langley PERCH_LOGINPATH: /admin PERCH_PATH: /home/sites/roomskitchens.co.uk/public_html/admin PERCH_CORE: /home/sites/roomskitchens.co.uk/public_html/admin/core PERCH_RESFILEPATH: /home/sites/roomskitchens.co.uk/public_html/admin/resources PERCH_RESPATH: /admin/resources PERCH_HTML5: 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_DEBUG: PERCH_PREVIEW_ARG: preview PERCH_TEMPLATE_PATH: /home/sites/roomskitchens.co.uk/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_AUTH_PLUGIN: PERCH_DB_CHARSET: utf8 PERCH_DB_PORT: PERCH_DB_SOCKET: HOSTING SETTINGS

PHP: 5.3.28 Zend: 2.3.0 OS: Linux SAPI: cgi-fcgi Safe mode: not detected MySQL client: mysqlnd 5.0.8-dev - 20102224 - $Id: 731e5b87ba42146a687c29995d2dfd8b4e40b325 $ MySQL server: 5.5.47 Extensions: Core, date, ereg, libxml, openssl, pcre, sqlite3, zlib, bz2, calendar, ctype, hash, filter, ftp, gettext, gmp, SPL, iconv, session, standard, mysqlnd, pcntl, mysqli, PDO, pdo_mysql, pdo_sqlite, Phar, Reflection, mysql, shmop, SimpleXML, sockets, exif, tokenizer, xml, cgi-fcgi, bcmath, curl, dom, fileinfo, gd, imap, intl, json, ldap, mbstring, mcrypt, mssql, OAuth, odbc, pdo_dblib, PDO_ODBC, pdo_pgsql, pgsql, posix, soap, SQLite, sysvmsg, sysvsem, sysvshm, wddx, xmlreader, xmlrpc, xmlwriter, xsl, zip, ionCube Loader, Zend Guard Loader GD: Yes ImageMagick: No PHP max upload size: 64M PHP max form post size: 64M PHP memory limit: 128M Total max uploadable file size: 64M Resource folder writeable: Yes Session timeout: 24 minutes Native JSON: Yes Filter functions: Yes Transliteration functions: No PATH: /usr/local/bin:/usr/bin:/bin UNIQUE_ID: Vt7qfH8AAAEAAImPwsEAAAAO SCRIPT_URL: /admin/core/settings/diagnostics/ SCRIPT_URI: https://www.roomskitchens.co.uk/admin/core/settings/diagnostics/ HTTP_HOST: www.roomskitchens.co.uk HTTP_ACCEPT: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,/;q=0.8 HTTP_UPGRADE_INSECURE_REQUESTS: 1 HTTP_USER_AGENT: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.116 Safari/537.36 HTTP_REFERER: https://www.roomskitchens.co.uk/admin/core/settings/diagnostics/ HTTP_ACCEPT_ENCODING: gzip, deflate, sdch HTTP_ACCEPT_LANGUAGE: en-US,en;q=0.8 HTTP_COOKIE: cmsa=1; _gat=1; PHPSESSID=gtlsr8bi342q6ih2ke1mdcto05; _ga=GA1.3.1984433595.1454929674; __atuvc=2%7C6%2C0%7C7%2C0%7C8%2C0%7C9%2C12%7C10; __atuvs=56dee6f2937eb34300b HTTP_CONNECTION: close SERVER_SIGNATURE: <address>Apache/2.4.18 (Unix) Server at www.roomskitchens.co.uk Port 80</address> SERVER_SOFTWARE: Apache/2.4.18 (Unix) SERVER_NAME: www.roomskitchens.co.uk SERVER_ADDR: 10.0.187.192 SERVER_PORT: 80 REMOTE_ADDR: 194.102.14.119 DOCUMENT_ROOT: /home/sites/roomskitchens.co.uk/public_html REQUEST_SCHEME: http CONTEXT_DOCUMENT_ROOT: /home/sites/roomskitchens.co.uk/public_html SERVER_ADMIN: root@localhost SCRIPT_FILENAME: /home/sites/roomskitchens.co.uk/public_html/admin/core/settings/diagnostics/index.php REMOTE_PORT: 58327 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: 1457449596