For future reference, never browse the site while you're botting or vice-versa.
Makes it look suspicious if TNT were to look into logs and stuff.
But... FYI, cookies from either side A (bot) or Side B (browser) will become invalid and only a single session will stay active. a.k.a. One of them gets logged out.
Try to avoid doing something like that in the future though.
Also, the old version of Majin had a problem with the Stop/Pause button (I can't remember which one exactly) that would make the score send regardless of your wait time as soon as you pressed that button.