Camera Glich

Hey! I am making a game in unity, but I hadn’t actually touched the game in a while and I found this problem occur, I want to be able to move into the objects, however, the engine is clipping my objects so I can’t see anything if you know the setting to turn off/on PLEASE reply:
video link of error: - YouTube

@CrazyLegoids, This question already has an answer here: 1