Never go to Denmark

 

Lol.
No, it's nothing to do with Denmark.
You probably have a adware problem, from a newly installed app or it popped up in your browser....
Try clearing the cache in your browser and see if that helps

 

If you can, if it happens again, the safest thing to do would be back up all your valuable pictures and videos and messages and such, and then do a full factory reset. That would nuke the phone's data and reset it to an out of box state (so you'll have to set up everything again), BUT that would 100% for sure take out any weird apps you may have on there. It's a pain but it's a sure fire way to solve the problem. I did that a couple times when my old LG phone got infected... not sure if you've heard of the "PLAY STORE ONE TWO" virus but I've contracted that thing many a time.

Also, as soon as possible, make sure your firmware's up to date too. Security patches with new releases of Android fix a lot of vulnerabilities that bad people use for evil things. Hell, if you really wanted to (but I don't want to force you because it's a deep rabbit hole to plunge in) there is custom firmware for this device which would definitely be more up to date with security fixes than stock firmware would be. That is an option, but it's a whole other ordeal that takes a lot of time to get used to... but just wanted to lay it out just in case

 

Or probably a ghost doing paranormal activities in his phone lol

 

That sound scary, not to make fun and joke to u, it could be a ghost or spirit doing paranormal activities on ur phone im serious try to pray any prayer u know so that the ghosts be exored from ur phone

 

Yes, an exorcism on said device would do the trick! Lol...