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Notice: Trying to get property 'conn' of non-object in /das0/www/sse.kasi.re.kr/html/backend/app/Server.php on line 132

Fatal error: Uncaught Error: Call to a member function query() on null in /das0/www/sse.kasi.re.kr/html/backend/app/Server.php:132 Stack trace: #0 /das0/www/sse.kasi.re.kr/html/frontend/public/index.php(123): Server->getWorkshop() #1 /das0/www/sse.kasi.re.kr/html/app/Router.php(61): {closure}() #2 /das0/www/sse.kasi.re.kr/html/frontend/public/index.php(833): Router::run() #3 {main} thrown in /das0/www/sse.kasi.re.kr/html/backend/app/Server.php on line 132