[Steven Zahm]

@ Steve

re: I don’t know how to delete the file ‘gridder.min.js I can see it in the Network Admin, Plugins, Edit I could delete it’c contents and save it but I can’t see any way to delete the field here?

You can not delete files with the plugin Editor. Log into your site with FTP and delete the file that way.

re: I tried removing the code from that file but it didn’t help

WP Engine has very aggressive caching. Make sure you flush it after deleting the line otherwise WP Engine will continue to serve the original file.