Jukebox does not connect to laptop?

I have a jbl musikbox and it has always connected to my laptop but somehow it does not connect anymore. When I turn on both Bluetooth, sounds the sound that it has connected but the music still comes from the laptop.

do you have an idea why it is?

Unfortunately I do not know, but you could take an AUx cable. Do you know what that is?

Yes, but my box has no connection

Stupid. Then look at the same time in the manual from the box