Hi, @teraßyte! I hope you and your loved ones are doing well.
First, I want to thank you for making this plugin. I appreciate the hard work IPS developers do, especially when they release their work for free.
Second, I want to report a bug with the plugin. Whenever I enable the plugin, I get a generic 500 ISE message. Sometimes the ISE shows the IPS 500 ISE message, and sometimes it shows the browser's one. My site works if I disable the plugin. I checked the logs, and I didn't see anything.
Again, thank you for the free plugin(s)! Have an excellent rest of the day! 🙂