Fatal error

Hi, i use this plugin abouth three or four months and until now has worked perfect, but it is until a few days ago, I throw this error and I can not solve it, try to delete the cache, but I do not know what it can be.

Fatal error: Cannot use object of type WP_Error as array in /home/web/wp-content/plugins/wp-geo-based-content/core/wpgeo_content-class.php on line 71

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