UE4 Project All Screens Black [4.26]

So I opened up my project and all my screens were black. Blueprint images and world. I tried fixing lighting and such, but nothing worked. In the corner it says “Texture Streaming Pool Over — MiB Budget” in case that may be useful. How can I solve this?

To solve the left corner error, just open cmd and type the following command:
r.streaming.poolsize 16000