Posted images are separated rather than side by side

I have have just switched to the Weaver 2 theme form the Ali Han Neon and the images that I have posted to my blog are separated when they should be side by side (Large image with the tree small images along side it). The pictures were just fine before I switched themes. How do I fix this issue?

Thanks~

https://www.lively-arts.org/blog/wire-wrapped-rings/