Error comes when try tu upload an image -

Im using a paid Theme INSPIRON - They have a utilitie to upload background images form
admin/appearance/settings/

This happen one time I try to upload a image, and my host recomended to give to you the error.

Error 403: Forbidden

Your PHP settings have been disabled by an H-Sphere administrator.

Your current PHP configuration:
-->
This configuration was changed:

Please bring your PHP configuration in compliance with admin settings or request your administrator to re-enable support of your settings.

You don't have permissions to access this page. This usually means one of the following:

this file and directory permissions make them unavailable from the Internet.
.htaccess contains instructions that prevent public access to this file or directory.

Please check file and directory permissions and .htaccess configuration if you are able to do this. Otherwise, request your webmaster to grant you access.

- THE HOST SERVER LOG MESSAGE WAS -

[Mon Feb 04 11:31:11 2013] [error] [client 187.233.117.85] ModSecurity: Access denied with code 403 (phase 2). Match of "eq 0" against "MULTIPART_UNMATCHED_BOUNDARY" required. [file "/hsphere/local/config/httpd2/modsecurity-core-rules/modsecurity_crs_20_protocol_violations.conf"] [line "132"] [id "960915"] [msg "Multipart parser detected a possible unmatched boundary."] [severity "CRITICAL"] [tag "RULE_MATURITY/7"] [tag "RULE_ACCURACY/8"] [tag "https://www.owasp.org/index.php/ModSecurity_CRS_RuleID-960915";] [hostname "revistabetun.com"] [uri "/admin/appearance/settings/InspiroB"] [unique_id "URAMdn8AAAEACOCfUFMAAAAC"]