When trying to install a new theme to buy forum a out of memory error occurred due to my old host. Then my index page decided to go blank. My admin panel is also messed up. I tried uploading a new theme but now it's just saying it's errored when in the process of it. Does anyone how to fix this so my index page isn't blank anymore and my admin panel isn't messed up :/. Here's a picture of my admin panel.