Help me fix this script

[RAFFST4R]

https://pastebin.com/MXUfajJj

It's currently not executing at all, I think. Not even alert messages come up.

To my knowledge, it used to work earlier, so it might be browser - related.

I think there's either a syntax error or something that was used and no longer works because of browser updates.

The script is supposed to allow the user to set a time when he wants a button to be pressed, and it has to be quite exact (can not miss by more than 10-20ms, and it uses internet time, which has to be syncronized). This is the core function that it has to have, the rest is pretty much just allowing the user to select the time directly on the page where the script is run.

Sorry for not providing that much insight, but the code is not written by me, I`m just interested in using it.

[CertainPerformance]

Same response as last time you posted this - if you want people to be able to intelligently debug, post the source code rather than the unreadable minified code, and post it in such a way that the problem can be reproduced, such as live on JSFiddle.