Finally, I get some output in spider.log:
<br />
<b>Warning</b>: main(../includes/config.php): failed to open stream: No such file or directory in <b>/home/takpoli/public_html/spider.php</b> on line <b>91</b><br />
<br />
<b>Warning</b>: main(): Failed opening '../includes/config.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in <b>/home/takpoli/public_html/spider.php</b> on line <b>91</b><br />
<br />
<b>Warning</b>: main(../libs/auth.php): failed to open stream: No such file or directory in <b>/home/takpoli/public_html/spider.php</b> on line <b>92</b><br />
<br />
<b>Warning</b>: main(): Failed opening '../libs/auth.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in <b>/home/takpoli/public_html/spider.php</b> on line <b>92</b><br />
<br />
<b>Warning</b>: main(../admin/robot_functions.php): failed to open stream: No such file or directory in <b>/home/takpoli/public_html/spider.php</b> on line <b>96</b><br />
<br />
<b>Warning</b>: main(): Failed opening '../admin/robot_functions.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in <b>/home/takpoli/public_html/spider.php</b> on line <b>96</b><br />
<br />
<b>Warning</b>: main(../libs/htmlheader.php): failed to open stream: No such file or directory in <b>/home/takpoli/public_html/spider.php</b> on line <b>102</b><br />
<br />
<b>Warning</b>: main(): Failed opening '../libs/htmlheader.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in <b>/home/takpoli/public_html/spider.php</b> on line <b>102</b><br />
<head>
<br />
<b>Warning</b>: main(../libs/htmlmetas.php): failed to open stream: No such file or directory in <b>/home/takpoli/public_html/spider.php</b> on line <b>104</b><br />
<br />
<b>Warning</b>: main(): Failed opening '../libs/htmlmetas.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in <b>/home/takpoli/public_html/spider.php</b> on line <b>104</b><br />
</head>
<body bgcolor="white">
<img src="../phpdig_logo_2.png" width="200" height="114" alt="PhpDig PHPDIG_VERSION" /><br />
<h3><br />
<b>Fatal error</b>: Call to undefined function: phpdigprnmsg() in <b>/home/takpoli/public_html/spider.php</b> on line <b>108</b><br />
500 Can't connect to cronlist.txt:80 (Bad hostname 'cronlist.txt')
It seems some other places need to be change. Could anyone help? Thanks.