AwesomeAds and PHP Warning: feof() expects parameter 1 to be resource, boolean given

I’m going through error logs in order to optimize apache performance avoiding unuseful php errors and warning not visible from the “outside”. Then i’ve found an error related with this wordpress plugin called “Awesome Ads” wich can manage ads displaying on...
AwesomeAds and PHP Warning: feof() expects parameter 1 to be resource, boolean given