While playing, occasionally I get this random pop-up saying there is no disc inserted or something. Is that normal, or did I fail installing it?

Haha, I have the exact same problem! I've always had this problem and seem to get this error message a lot more when in high lag areas.

I just put up with it!

I did a search and found out other people have had this problem, but I unfortunatley could not find a solution. Does your game crash or if you just close the pop up everything returns to normal and nothing happens? If thats the case then I would not worry about it. If it annoys you that much, maybe try reinstalling.

Well, it usually doesn't cause a crash. But this latest time it did, I don't know if it's because I tried to move while the pop-up was out or what.

coz the TW released a disc version just to make more money which also comes with a bunch of items but maybe your accounts are reading as disc versions

Oh. Well it's not to annoying now, but I can see it being a problem later during dungeons or something. Do you think reinstalling will do anything about it?