There's no way to tell what is going on with your screenshot. Here's what you do. Select the layers in the composition and press the U key twice to reveal all modified properties. Turn layers or effects on and off to find out which layer is causing the problem. If you can't figure it out then post a full rez screenshot by dragging it into the Reply field on this forum and give us details of your workflow.
BTW, your camera tracked footage must be 2D, Your text panel should be reset, you should set an origin and ground plane, then when you add text and a camera things should work just fine.
I'm new to After Effects, I did Camera Track and it analyzed the video entirely. I then go to add the bullseye to where I would like to place the text. I then right click on the bullseye and click, 'Create Text and Camere' And this is what happens
Reset your text panel to make sure the text is not huge. Set origin and ground plane first, then add your text and camera.
To run through tutorials for camera tracking please type "camera tracking" in the search help field at the top right corner of AE and look at some of the training. Here's a no audio demo:
I was doing it earlier perfectly fine. I was doing it without that white screen. It just started happening out of nowhere, I'm doing it the same way I was earlier