when i put it in de dockstation.
Is the "dockstation" the original USB docking cable? If it has a mini-dock, your shuffle must be the 2nd gen model. If so, it is quite old at this point, so a likely cause is a worn out battery that is no longer able to hold a charge.
I also tried to charge it with an adapter in the socket without using my pc but that isn't working either.
If that USB power adapter worked before to charge your iPod, this also points to the shuffle's battery as the problem. If you never tried that before with this USB power adapter, then...
He is recognized by Itunes so that's not te problem.
If the iPod is seen in iTunes, you can try something. Select the iPod in iTunes (click its device button on horizontal bar) to show its settings screen in iTunes window. There is a setting there for Enable disk use. Checkmark that box (if it's not already) and Apply.
You may see the shuffle's light start to blink. Flashing light means DO NOT DISCONNECT, so it does not necessarily mean your shuffle's battery is charging. Leave it connected for a few hours. Then, try to play it.
NOTE: When disk use is enabled, you need to Eject the iPod in iTunes before physically disconnecting. That's why the light blinks (as a warning).