运行docker容器命令，报错

[linth2005]

Fatal error: Uncaught Error: Call to a member function text() on null in /root/91porn/detailPage.php:32
Stack trace:
#0 /root/91porn/91all.php(23): singlePage('http://627.work...', '\xE5\xA4\xA7\xE5\xA5\xB6\xE6\xA0\xA1\xE8\x8A\xB1\xE6\x94\xBE...')
#1 /root/91porn/91all.php(35): listPage('http://627.work...', 1, 10)
#2 {main}
thrown in /root/91porn/detailPage.php on line 32

大佬给看下