Not able to log into administrator with any login, 500 error - Joomla! Forum - community, help and support

problem description :: forum post assistant (v1.2.3) : 4th december 2012 wrote:administrator 500 error - not able log admin

log/error message :: forum post assistant (v1.2.3) : 4th december 2012 wrote:500 - error has occurred.

log/error message :: forum post assistant (v1.2.3) : 4th december 2012 wrote:the server encountered internal error or misconfiguration , unable complete request. please contact server administrator, cgiadmin@yourhostingaccount.com , inform them of time error occurred, , might have done may have caused error. more information error may available in server error log.

actions taken resolve forum post assistant (v1.2.3) 4th december 2012 wrote:checked hosting see if environment changed, has not (according them)

forum post assistant (v1.2.3) : 4th december 2012 wrote:

basic environment :: wrote:joomla! instance :: joomla! 2.5.6-stable (ember) 19-june-2012
joomla! platform :: joomla platform 11.4.0-stable (brian kernighan) 03-jan-2012
joomla! configured :: yes | writable (644) | owner: ipw.papajoesbbqcom (uid: 1/gid: 1) | group: www (gid: 1) | valid for: 2.5
configuration options :: offline: 0 | sef: 1 | sef suffix: 0 | sef rewrite: 0 | .htaccess/web.config: yes | gzip: 0 | cache: 0 | ftp layer: 0 | ssl: 0 | error reporting: default | site debug: 0 | language debug: 0 | default access: 1 | unicode slugs: 0 | database credentials present: yes

host configuration :: os: linux | os version: 3.0.9-bl3-grsec | technology: i686 | web server: apache/2 | encoding: gzip,deflate,sdch | doc root: /home/users/web/b52/ipw.papajoesbbqcom/public_html | system tmp writable: yes

php configuration :: version: 5.3.13 | php api: cgi-fcgi | session path writable: unknown | display errors: | error reporting: 22519 | log errors to: | last known error: | register globals: 1 | magic quotes: | safe mode: | open base: | uploads: 1 | max. upload size: 20m | max. post size: 20m | max. input time: 60 | max. execution time: 120 | memory limit: 32m

mysql configuration :: version: 5.0.91-log (client:5.0.51a) | host: --protected-- (--protected--) | collation: latin1_swedish_ci (character set: latin1) | database size: 2.36 mib | #of tables:  106

detailed environment :: wrote:php extensions :: core (5.3.13) | date (5.3.13) | ereg () | libxml () | openssl () | pcre () | sqlite3 (0.7-dev) | zlib (1.1) | bcmath () | calendar () | ctype () | curl () | dba () | dom (20031129) | hash (1.0) | fileinfo (1.0.5-dev) | filter (0.11.0) | ftp () | gd () | gettext () | spl (0.2) | iconv () | session () | json (1.2.1) | mbstring () | mcrypt () | mysql (1.0) | mysqli (0.1) | pdo (1.0.4dev) | pdo_mysql (1.0.2) | pdo_sqlite (1.0.1) | standard (5.3.13) | posix () | pspell () | reflection ($id: 522fef1e5100f848a5e2059d98b3a880a3143e9a $) | imap () | simplexml (0.1) | sockets () | phar (2.0.1) | sqlite (2.0-dev) | exif (1.4 $id$) | tokenizer (0.1) | wddx () | xml () | xmlreader (0.1) | xmlrpc (0.51) | xmlwriter (0.1) | xsl (0.1) | zip (1.9.1) | cgi-fcgi () | mhash () | zend engine (2.3.0) |
potential missing extensions :: suhosin |

switch user environment (experimental) :: php cgi: yes | server su: yes | php su: yes | custom su (litespeed/cloud/grid): yes
potential ownership issues: no

folder permissions :: wrote:core folders :: images/ (755) | components/ (755) | modules/ (755) | plugins/ (755) | language/ (755) | templates/ (755) | cache/ (755) | logs/ (755) | tmp/ (755) | administrator/components/ (755) | administrator/modules/ (755) | administrator/language/ (755) | administrator/templates/ (755) |

elevated permissions (first 10) ::

extensions discovered :: wrote:components :: site :: com_wrapper (2.5.0) | com_mailto (2.5.0) |
components :: admin :: com_categories (2.5.0) | com_installer (2.5.0) | com_banners (2.5.0) | com_modules (2.5.0) | poweradmin (1.1.1) | com_cache (2.5.0) | rsform (1.4.0 r43) | com_weblinks (2.5.0) | com_login (2.5.0) | com_checkin (2.5.0) | com_cpanel (2.5.0) | com_search (2.5.0) | com_redirect (2.5.0) | com_media (2.5.0) | com_plugins (2.5.0) | com_admin (2.5.0) | com_config (2.5.0) | com_joomlaupdate (2.5.0) | imageshow (4.2.1) | rstester! (1.0.0) | com_newsfeeds (2.5.0) | forme (1.0.7) | com_content (2.5.0) | com_finder (2.5.0) | com_users (2.5.0) | com_languages (2.5.0) | breezingforms (1.7.5 stable ) | com_templates (2.5.0) | com_messages (2.5.0) | com_menus (2.5.0) |

modules :: site :: mod_finder (2.5.0) | mod_articles_categories (2.5.0) | mod_banners (2.5.0) | mod_stats (2.5.0) | mod_syndicate (2.5.0) | jsn imageshow (4.2.1) | ot_mini_slideshow (1.7.0) | mod_menu (2.5.0) | mod_articles_category (2.5.0) | mod_custom (2.5.0) | mod_login (2.5.0) | mod_weblinks (2.5.0) | ari image slider (1.6.20) | ari image slider (1.6.20) | mod_languages (2.5.0) | mod_articles_archive (2.5.0) | mod_articles_popular (2.5.0) | mod_whosonline (2.5.0) | mod_otlightboxlogin (1.7.0) | mod_search (2.5.0) | mod_wrapper (2.5.0) | freeslider sp1 (1.4.0) | mod_articles_news (2.5.0) | mod_related_items (2.5.0) | mod_feed (2.5.0) | mod_footer (2.5.0) | mod_articles_latest (2.5.0) | mod_users_latest (2.5.0) | mod_breadcrumbs (2.5.0) | mod_random_image (2.5.0) |
modules :: admin :: mod_poweradmin (1.1.1) | mod_version (2.5.0) | mod_latest (2.5.0) | mod_multilangstatus (2.5.0) | mod_logged (2.5.0) | mod_menu (2.5.0) | mod_custom (2.5.0) | mod_popular (2.5.0) | mod_toolbar (2.5.0) | mod_login (2.5.0) | mod_submenu (2.5.0) | mod_title (2.5.0) | mod_quickicon (2.5.0) | mod_feed (2.5.0) | jsn imageshow quick icons (4.2.1) | mod_status (2.5.0) |

plugins :: site :: plg_search_categories (2.5.0) | plg_search_content (2.5.0) | plg_search_contacts (2.5.0) | plg_search_newsfeeds (2.5.0) | plg_search_weblinks (2.5.0) | plg_content_geshi (2.5.0) | plg_content_loadmodule (2.5.0) | plg_content_vote (2.5.0) | plg_content_emailcloak (2.5.0) | content - jsn imageshow (4.2.1) | plg_content_finder (2.5.0) | plg_content_joomla (2.5.0) | plg_content_pagebreak (2.5.0) | plg_content_pagenavigation (2.5.0) | plg_user_profile (2.5.0) | plg_user_contactcreator (2.5.0) | plg_user_joomla (2.5.0) | plg_editors-xtd_article (2.5.0) | button - imageshow (4.2.1) | plg_editors-xtd_readmore (2.5.0) | plg_editors-xtd_pagebreak (2.5.0) | plg_editors-xtd_image (2.5.0) | plg_extension_joomla (2.5.0) | plg_captcha_recaptcha (2.5.0) | plg_finder_categories (2.5.0) | plg_finder_content (2.5.0) | plg_finder_contacts (2.5.0) | plg_finder_newsfeeds (2.5.0) | plg_finder_weblinks (2.5.0) | plg_editors_codemirror (1.0) | plg_editors_tinymce (3.5.2) | source picasa (1.1.2) | theme classic (1.1.4) | plg_quickicon_extensionupdate (2.5.0) | plg_quickicon_joomlaupdate (2.5.0) | plg_system_languagecode (2.5.0) | plg_system_remember (2.5.0) | system - jsn poweradmin (1.1.1) | plg_system_sef (2.5.0) | plg_system_debug (2.5.0) | system - helix framework (1.9.2) | plg_system_p3p (2.5.0) | system - jsn imageshow (4.2.1) | plg_system_highlight (2.5.0) | plg_system_logout (2.5.0) | plg_system_redirect (2.5.0) | plg_system_cache (2.5.0) | plg_system_log (2.5.0) | plg_system_languagefilter (2.5.0) | plg_system_jsnframework (1.0.1) | plg_authentication_gmail (2.5.0) | plg_authentication_ldap (2.5.0) | plg_authentication_joomla (2.5.0) |

templates discovered :: wrote:templates :: site :: beez5 (2.5.0) | js_wright (3.0.4) | ot_appoz (1.7.0) | jsn_gruve_free (1.1.3) | atomic (2.5.0) | beez_20 (2.5.0) | shaper_zaara (1.0.0) |
templates :: admin :: bluestork (2.5.0) | hathor (2.5.0) |

what changes made before error?