pc가 4대 있습니다

a, b, c에서는 겔러리 게시판이 로그인을하면 문제없이 잘 등록이 됩니다

하지만 유독 한 pc에서는 권한이 없다고 메세지를 뿌립니다.

익스 버전도 똑같고 크롬에서도 같은 반응입니다.

로그도 확인해보았지만 어떤 오류인지를 인지 못하고있습니다

로그 내용 첨부하여 드립니다

고수님들이 도움이 절실히 필요합니다 ㅠㅠ

ERROR - 2017-10-24 17:29:48 --> Severity: Notice  --> Trying to get property of non-object /home/hosting_users/sharegj/www/application/controllers/app/board.php 418
ERROR - 2017-10-24 17:29:48 --> Severity: Notice  --> Undefined index: timestemp /home/hosting_users/sharegj/www/application/controllers/app/board.php 423
ERROR - 2017-10-24 17:29:48 --> Severity: Notice  --> Undefined index: code /home/hosting_users/sharegj/www/application/controllers/app/board.php 424
ERROR - 2017-10-24 17:29:48 --> Severity: Notice  --> Undefined property: stdClass::$mb_id /home/hosting_users/sharegj/www/application/controllers/app/board.php 431
ERROR - 2017-10-24 17:29:48 --> Severity: Notice  --> Undefined property: stdClass::$title /home/hosting_users/sharegj/www/application/views/app/board/gallery/view_v.php 10
ERROR - 2017-10-24 17:29:48 --> Severity: Notice  --> Undefined property: stdClass::$is_notice /home/hosting_users/sharegj/www/application/views/app/board/gallery/view_v.php 11
ERROR - 2017-10-24 17:29:48 --> Severity: Notice  --> Undefined property: stdClass::$contents /home/hosting_users/sharegj/www/application/views/app/board/gallery/view_v.php 20
ERROR - 2017-10-24 17:29:48 --> Severity: Notice  --> Undefined property: stdClass::$contents /home/hosting_users/sharegj/www/application/views/app/board/gallery/view_v.php 25
ERROR - 2017-10-24 17:29:48 --> Severity: Notice  --> Undefined property: stdClass::$contents /home/hosting_users/sharegj/www/application/views/app/board/gallery/view_v.php 30
ERROR - 2017-10-24 17:29:48 --> Severity: Notice  --> Undefined property: stdClass::$contents /home/hosting_users/sharegj/www/application/views/app/board/gallery/view_v.php 64
ERROR - 2017-10-24 17:29:48 --> Severity: Notice  --> Undefined property: stdClass::$md_id /home/hosting_users/sharegj/www/application/views/app/board/gallery/view_v.php 92
ERROR - 2017-10-24 17:29:48 --> Severity: Notice  --> Undefined property: stdClass::$code /home/hosting_users/sharegj/www/application/views/app/board/gallery/view_v.php 92
ERROR - 2017-10-24 17:29:48 --> Severity: Notice  --> Undefined property: stdClass::$timestemp /home/hosting_users/sharegj/www/application/views/app/board/gallery/view_v.php 92
ERROR - 2017-10-24 17:29:48 --> Severity: Notice  --> Undefined property: stdClass::$title /home/hosting_users/sharegj/www/application/views/layouts/app/_head.php 12
ERROR - 2017-10-24 17:29:48 --> Severity: Notice  --> Undefined property: stdClass::$contents /home/hosting_users/sharegj/www/application/views/layouts/app/_head.php 15
ERROR - 2017-10-24 17:29:55 --> Severity: 8192  --> mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead /home/hosting_users/sharegj/www/system/database/drivers/mysql/mysql_driver.php 73
ERROR - 2017-10-24 17:29:58 --> Severity: 8192  --> mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead /home/hosting_users/sharegj/www/system/database/drivers/mysql/mysql_driver.php 73
ERROR - 2017-10-24 17:29:59 --> 404 Page Not Found --> files
ERROR - 2017-10-24 17:29:59 --> Severity: 8192  --> mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead /home/hosting_users/sharegj/www/system/database/drivers/mysql/mysql_driver.php 73
ERROR - 2017-10-24 17:29:59 --> 404 Page Not Found --> files