Title: Error: Unserialize failed – Adding CSP
Last modified: October 19, 2022

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# Error: Unserialize failed – Adding CSP

 *  Resolved [icedquick84](https://wordpress.org/support/users/icedquick84/)
 * (@icedquick84)
 * [3 years, 7 months ago](https://wordpress.org/support/topic/error-unserialize-failed-adding-csp/)
 * Hi there,
 * I am trying to add CSP directives via the Advanced Policies section of the plugin.
 * I am able to add default, img, script, frame and form. But when I try add font
   or style I get an error that:
 * NinjaFirewall fatal error : cannot retrieve user options from database (#1).
 * Specifically I am adding:
 *     ```
       font-src 'self’ *.gstatic.com;
       style-src 'self’ *.youtube.com *.bootstrapcdn.com  *.googleapis.com;
       ```
   
 * Using wp-db.php, I get the below diagnostic – any thoughts on how to fix?
 *     ```
       Attempting to connect to the DB: OK
   
       Attempting to read NinjaFirewall's options (nfw_options) from the DB: OK
       Calling fetch_object: OK
       Checking options integrity: Error: Unserialize failed
       ```
   

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Author [nintechnet](https://wordpress.org/support/users/nintechnet/)
 * (@nintechnet)
 * [3 years, 7 months ago](https://wordpress.org/support/topic/error-unserialize-failed-adding-csp/#post-16116992)
 * In your example, you’re not using the quote character (`'`, U+0027) after `self`,
   but the right single quote character (`’`, U+2019).
    With quotes, it should be:`
   font-src 'self' *.gstatic.com; style-src 'self' *.youtube.com *.bootstrapcdn.
   com *.googleapis.com;`
 *  Thread Starter [icedquick84](https://wordpress.org/support/users/icedquick84/)
 * (@icedquick84)
 * [3 years, 7 months ago](https://wordpress.org/support/topic/error-unserialize-failed-adding-csp/#post-16119897)
 * Ah, I didn’t even see that. It’s always that one character!
 * Thank you, I appreciate your effort on this one.
 * Kind regards,
 * IcedQuick

Viewing 2 replies - 1 through 2 (of 2 total)

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## Tags

 * [CSP](https://wordpress.org/support/topic-tag/csp/)

 * 2 replies
 * 2 participants
 * Last reply from: [icedquick84](https://wordpress.org/support/users/icedquick84/)
 * Last activity: [3 years, 7 months ago](https://wordpress.org/support/topic/error-unserialize-failed-adding-csp/#post-16119897)
 * Status: resolved