Title: [Plugin: WordPress Firewall 2] Warning and Error while setting whitelist
Last modified: August 19, 2016

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# [Plugin: WordPress Firewall 2] Warning and Error while setting whitelist

 *  [stOrMOnE](https://wordpress.org/support/users/stormone/)
 * (@stormone)
 * [15 years, 5 months ago](https://wordpress.org/support/topic/plugin-wordpress-firewall-2-warning-and-error-while-setting-whitelist/)
 * Hi,
    I was trying to set up a whitelist due to a false positiv on my blog. However
   this results in the following error and warning messages:
 * Warning: unserialize() expects parameter 1 to be string, array given in wordpress-
   firewall-2.php on line 606
 * Warning: unserialize() expects parameter 1 to be string, array given in wordpress-
   firewall-2.php on line on line 607
 * Additional question:
    In the whitelist you have a field for page and a field 
   for a form variable…
 * I got a notification via email from your plugin telling me:
 * WordPress Firewall has detected and blocked a potential attack!
    Web Page: www……………………
   Warning: URL may contain dangerous content! Offending IP: 79.114.17.167 [ Get
   IP location ] Offending Parameter: wassup_screen_res = 1920×1080
 * Well thats a false positive for me so I wonder how to put it into the whitelist?
 * I assume: wassup_screen_res is for the form variable field but for what page?
   Since wassup is a plugin I’m using to get visitors information for statistic 
   stuff…
 * regards,
    s!
 * [http://wordpress.org/extend/plugins/wordpress-firewall-2/](http://wordpress.org/extend/plugins/wordpress-firewall-2/)

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 * 0 replies
 * 1 participant
 * Last reply from: [stOrMOnE](https://wordpress.org/support/users/stormone/)
 * Last activity: [15 years, 5 months ago](https://wordpress.org/support/topic/plugin-wordpress-firewall-2-warning-and-error-while-setting-whitelist/)
 * Status: not resolved