Blogging Disaster!

So I do not know what is going on with my blog. It will not let me upload anything, so I do not know if it is my computer and it does not have enough memory or what? So I am back to just the normal look. It works for now! So if anyone has any suggestions I would love some advice! Thanks! I bet it is because I have changed it so much that now it is super confused! Well hopefully I can figure it out! (PROBABLY NOT)