When I render my videos my text disappears?

Your screenshots do not show us both the Modes and Switches columns (the first two icons at the bottom left corner of the timeline). We have no idea what your render settings are or how you sent the layers to render. It looks like you have a bunch of text layers and two movies with no effects applied. Creating these subtitles in Premiere Pro would be a lot more efficient. 

Give us some more details and show the modified properties of the problem layers by pressing the 'u' key twice to give us some idea of your workflow, and we might be able to help you figure it out.