系统发生错误

[ 错误信息 ]

TypeError: Cannot access offset of type string on string in /home2/srichdur/ebiochem.com/Home/Lib/Action/SearchAction.class.php:276 Stack trace: #0 /home2/srichdur/ebiochem.com/Home/Lib/Action/SearchAction.class.php(127): SearchAction->searchByTag('55268-74-1') #1 /home2/srichdur/ebiochem.com/Home/Runtime/~runtime.php(2): SearchAction->search() #2 /home2/srichdur/ebiochem.com/Home/Runtime/~runtime.php(2): App::exec() #3 /home2/srichdur/ebiochem.com/index.php(25): App::run() #4 {main}