PHP Warning

Hi there

We’re seeing large log files being caused by the repeated listing of the following error:

[17-Jul-2019 21:40:02 UTC] PHP Warning: getimagesize(https://www.globalrailwayreview.com/wp-content/uploads/Network-Rail-Logo.gif): failed to open stream: no suitable wrapper could be found in /home/grr/public_html/wp-content/plugins/wp-open-graph/output.class.php on line 306

It look as if Wp Open Graph is the culprit, how do I prevent this from happening?