White blank page returned

When I click on the “Add new jobs” link,it returns a blank page only with wp dashborad menu. I think it could be my server’s problem.But I don’t know how to fix it.
Please help me . Thank you.

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WordPress version 3.5.1
BackWPup version 3.0.12 Get pro.
PHP version 5.3.25
MySQL version 5.0.67-community
cURL version 7.30.0
cURL SSL version OpenSSL/0.9.8b
Server self connect: Response Test O.K.
Temp folder: /home/seahurti/domains/seahurt.info/public_html/wordpress/wp-content/uploads/backwpup-af2cf-temp/
Logs folder: /home/seahurti/domains/seahurt.info/public_html/wordpress/wp-content/uploads/backwpup-48e08-logs/
Server Apache/2
Operating System Linux
PHP SAPI apache2handler
Current PHP user seahurti
Safe Mode Off
Maximum execution time 30 seconds
Alternative WP Cron Off
Disabled WP Cron Off
CHMOD Dir 0755
Server Time 7:44
Blog Time 15:44
Blog Timezone
Blog Time offset 8 hours
Blog language en-US
MySQL Client encoding utf8
Blog charset UTF-8
PHP Memory limit 256M
WP memory limit 40M
WP Maximum memory limit 256M
Memory in use 5.75 MB

Disabled PHP Functions: passthru, exec, system, chroot, chgrp, chown, shell_exec, proc_open, proc_get_status, ini_alter, ini_alter, ini_restore, dl, openlog, syslog, readlink, symlink, popepassthru

Loaded PHP Extensions:
Core, PDO, Phar, Reflection, SPL, SQLite, SimpleXML, apache2handler, bcmath, calendar, ctype, curl, date, dom, eAccelerator, ereg, exif, fileinfo, filter, ftp, gd, gettext, hash, iconv, json, libxml, mbstring, mcrypt, memcache, mhash, mysql, mysqli, openssl, pcre, pdo_mysql, pdo_sqlite, posix, session, soap, sockets, sqlite3, standard, tokenizer, wddx, xml, xmlreader, xmlwriter, xsl, zip, zlib

http://ww.wp.xz.cn/extend/plugins/backwpup/