Caused crashes

This plugin caused a crash on my WP4.1 site – to the point that I had to remove a .maintenance file from the root via FTP (the site hung and stayed in maintenance mode). Upgrading to 4.1.1 seemed to resolve the issue, but it’s no fun when you’re getting phone calls from a client who is turning money over on a site that will be down until I search the entire web looking for a way to remove the mintenance mode so I can get back in to both back-end and front-end. Need to test on 4.1 guys as it’s a real issue. Sorry.