the error is in your wait 20 seconds action. Either you have to use Wait (Game Time) or something similar to this: Wait until ((Remaining time for neutiemfenster) Equal to 0.00), checking every 1.00 seconds
And then there are lots of other surplus actions in your trigger, such as the weird animation speed setting and: Unit Group - Pick every unit in TimeGruppe and do (If ((Triggering unit) Equal to (Picked unit)) then do (Game - Unpause the game) else do (Do nothing)). It's just completely messed up
Also, your map sucks like hell, because you create massive amounts (about 50 every 3 seconds) of special effects without destroying any of them, and constantly giving levels to heroes is useless, too.
your triggers suck badly, so i suggest not to use this spell at all. for example, although you got a timer, there's the possibility that the spell is cast a 2nd time before the first one actually ends... that's so poor for such a simple spell.
Thanks for: 1) making a new spell 2) Taking out the place of that unnauthorized version of my map. So people will go to download the official version now that the unnauthorized no longer appears in the main page.