I tracked motion and insert text. ex. so the text was like on a wall.
But now i wanne give the text a effect, but if i insert a effect in wont do anything with the text and the ''fx''' checkbox is gone.
does anyone now how to fix this.
I'm assuming you mean the 'fx' checkbox on the layer in the timeline. You should be able to 'toggle switches/modes' to reveal that checkbox again (keyboard shortcut F4 on PC). You can also click on the 'Switches / Modes' button at the bottom of the timeline window.
[mick dijk]"if i insert a effect in wont do anything with the text"
Some effects don't have any result when the settings are default. Try to add a 'blur' to the text and crank up the settings. You should see the results. It's hard to say what the problem is here without additional info about the comp and specific effects.