From the picture, it looks like the welds did not have sufficient penetration to begin with. It would be a good idea to do some grinding and redo the welds that are still there.
When asked if I know how to weld, I reply that I can burn a lot of rods or wire. I did take an adult ed class in welding. I may not always get it right the first time but I can tell whether I have enough penetration and will pull it apart and change parameters to make it right if I need to every time. I did a 6 month stint doing production mig welding on light poles and only got red tagged once, and nothing that I have done has fallen apart yet. So y'all can feel safe parking in those big box parking lots
