Title: Mod_Security Error Last modified: April 22, 2025 --- # Mod_Security Error * Resolved [Rose](https://wordpress.org/support/users/va-cape/) * (@va-cape) * [1 year, 1 month ago](https://wordpress.org/support/topic/mod_security-error-2/) * Hi! I receive this error when authenticating FB account and redirecting back to website…. * Not Acceptable! An appropriate representation of the requested resource could not be found on this server. This error was generated by Mod_Security. * Please advise how to remedy this. Thank you. Viewing 6 replies - 1 through 6 (of 6 total) * Plugin Support [Marija](https://wordpress.org/support/users/marijastuntcoders/) * (@marijastuntcoders) * [1 year, 1 month ago](https://wordpress.org/support/topic/mod_security-error-2/#post-18429734) * Hi Rose! * The error message is most likely related to a hosting configuration or Web Application Firewall (specifically, Mod_Security), not the Facebook for WooCommerce plugin itself. * Please contact your host provider and ask them to assist you with this: - Let them know that you are using the Facebook for WooCommerce plugin, and share the Error message you are receiving when trying to connect - Share the URL where you are seeing the “Not acceptable!” error - Ask them to modify the ModSecurity rules so that the request can go through and you can connect to the plugin * Please let us know how your hosting provider handles this, so that we can help other users that experience this issue as well. * Kind regards, Marija * Thread Starter [Rose](https://wordpress.org/support/users/va-cape/) * (@va-cape) * [1 year, 1 month ago](https://wordpress.org/support/topic/mod_security-error-2/#post-18430941) * Hi Marija! * Thanks for the quick steps to resolving this issue. I will reach out to the hosting company and let you know what transpires. * Kind regards. * Thread Starter [Rose](https://wordpress.org/support/users/va-cape/) * (@va-cape) * [1 year, 1 month ago](https://wordpress.org/support/topic/mod_security-error-2/#post-18437268) * Hi Marija! A quick follow-up to let you know that the issue was resolved instantly after providing the hosting company with all the info you advised. * Thanks again for your help! * Plugin Support [Marija](https://wordpress.org/support/users/marijastuntcoders/) * (@marijastuntcoders) * [1 year, 1 month ago](https://wordpress.org/support/topic/mod_security-error-2/#post-18439587) * Thank you for following up on this!  * Do you know any details on how they fixed this? It could be helpful to other users as well. * If you are satisfied with the plugin and the support you’ve received, we would greatly appreciate it if you could take a moment to leave a [review](https://wordpress.org/support/plugin/facebook-for-woocommerce/reviews/). * Kind regards, Marija * [Aman](https://wordpress.org/support/users/amanbt/) * (@amanbt) * [1 year ago](https://wordpress.org/support/topic/mod_security-error-2/#post-18447065) * Hi, I am facing the same error: Not Acceptable! An appropriate representation of the requested resource could not be found on this server. This error was generated by Mod_Security. * As suggested by you I contacted my hosting provider and asked them to modify the ModSecurity rules, however they reverted with the following reply: * [Fri May 02 18:58:26.161798 2025] [security2:error] [pid 105007:tid 22686878275328][ remote 49.36.188.137:63143] [client 49.36.188.137] ModSecurity: Access denied with code 406 (phase 2). Pattern match “=(?:ogg|tls|ssl|gopher|file|data|php| zlib|zip|glob|s3|phar|rar|s(?:sh2?|cp)|dict|expect|(?:ht|f)tps?)://” at REQUEST_URI.[ file “/etc/httpd/modsecurity.d/[10_asl_rules.conf”]](http://10_asl_rules.conf%22]/)[ line “517”] [id “340165”] [rev “291”] [msg “[Atomicorp.com](http://atomicorp.com/) WAF Rules: Uniencoded possible Remote File Injection attempt in URI (AE)”] * [data “/?wc-api=wc_facebook_connect&external_business_id=ingreensshop-6814c54f67080& nonce=37b12eccd2&type=standard&code=aqdlnmbj-wepcjezfxvohyj1z8c7enf9mqafsyl5fcxwqydunvp0u2kqhfvthri2a2y01_vw4kiwlsx715yzs1a3qk2kmonliyverjpj43jja18lpml_jsmmq7rzzuov2jit4mpq7ov70xxbjiokvtfkuntlpfqildreioejr- 3bhmt4ystp70db0zxxtctlcgw2rmqhjbgeaeyv5pvjyzsiedhsaiepw2ll_qexhfcpsoo_-s3yddtvdcgcngxt8zjrsjzsl6dytllqlte_4- _9ebkdlw1glg3kuvn44sejqdvdldn2npnkx-0jdvhe88s1vq-v3y9nh5qnt_32khlnktnnug3hxymqwstlgdq6r6ihqdbuu84dr_ogyveltwckhzn0ikzt…”] * [severity “CRITICAL”] [hostname “[ingreens.shop”]](http://ingreens.shop%22]/)[ uri “/”] [unique_id “aBTIenBX-pIR2FFxpqtFgAAB1lI”], referer: [https://api.woocommerce.com/](https://api.woocommerce.com/) * Please share this rule with the plugin manager you have connected to as per the log this cannot be whitelisted because the system is considering this as a sql injection attack on the server * Our system firewall (ModSecurity) blocked an external request due to a security rule that flagged the incoming URL as a potential remote file injection attempt. This is a false positive, commonly seen with API callbacks like the one from Facebook or WooCommerce. * This rule cannot be whitelisted from server end due to security reasons - This reply was modified 1 year ago by [Aman](https://wordpress.org/support/users/amanbt/). * Plugin Support [Marija](https://wordpress.org/support/users/marijastuntcoders/) * (@marijastuntcoders) * [1 year ago](https://wordpress.org/support/topic/mod_security-error-2/#post-18450451) * Hi [@amanbt](https://wordpress.org/support/users/amanbt/) , * This configuration can not be changed within the plugin, as it is used to connect multiple systems – and it has to be secure. The hosting company has created this as a broad rule, and there is nothing we can do from our end. * Kind regards, Marija Viewing 6 replies - 1 through 6 (of 6 total) The topic ‘Mod_Security Error’ is closed to new replies. * ![](https://ps.w.org/facebook-for-woocommerce/assets/icon.svg?rev=3469606) * [Meta for WooCommerce](https://wordpress.org/plugins/facebook-for-woocommerce/) * [Support Threads](https://wordpress.org/support/plugin/facebook-for-woocommerce/) * [Active Topics](https://wordpress.org/support/plugin/facebook-for-woocommerce/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/facebook-for-woocommerce/unresolved/) * [Reviews](https://wordpress.org/support/plugin/facebook-for-woocommerce/reviews/) * 6 replies * 3 participants * Last reply from: [Marija](https://wordpress.org/support/users/marijastuntcoders/) * Last activity: [1 year ago](https://wordpress.org/support/topic/mod_security-error-2/#post-18450451) * Status: resolved