vTiger 5.2.1 简体中文NB 20101118安装出错

vTiger 5.2.1 英文版本安装和使用都正常,在安装vTiger 5.2.1 简体中文NB 20101118时有报错信息:Warning: file_put_contents(include/js/zh_cn.lang.js) [function.file-put-contents]: failed to open stream: Permission denied in /var/www/html/crm520/vtlib/thirdparty/dUnzip2.inc.php on line 297

Warning: chmod() [function.chmod]: No such file or directory in /var/www/html/crm520/vtlib/thirdparty/dUnzip2.inc.php on line 225
Copying file include/js/zh_cn.lang.js … FAILED

Warning: file_put_contents(include/language/zh_cn.lang.php) [function.file-put-contents]: failed to open stream: Permission denied in /var/www/html/crm520/vtlib/thirdparty/dUnzip2.inc.php on line 297

Warning: chmod() [function.chmod]: No such file or directory in /var/www/html/crm520/vtlib/thirdparty/dUnzip2.inc.php on line 225

安装完毕后退出重新登陆中文版,登陆时提示:
Sorry! Attempt to access restricted file.

但同时登陆同系统英文界面正常,此安装和汉化环境在安装5.10版本时都正常。