Debug a wordpress template error

The immediate job for you is to debug an error that mysteriously occurred in my wordpress (hosted on bluehost) website. The first image (chess website) is the original template which shows how the 4 content boxes are correctly displayed (they overlap the slider image, right below the red text bubble). The website reflected this until today, but now the content boxes are bumped below the entire slider image (2nd image). I was not editing the page when this error occurred and have tried debugging it. It is probably a quick fix, but this is a bit beyond my mediocre coding ability. This is one task at the moment, but I'd like to establish a relationship with a coder who can help with any future jobs related to this website. If you're interested then feel free to message me. Thanks!