Being a senior skateboarder, I have gone through such situations so many times in my skateboarding career. There can be some major reasons for this failure. Here are these:
1- The surface you are riding might have a bending area on the left
2- The wheels or the trucks can be loosened or not attached professionally
3- Your style and level of riding the skateboard are not up to the mark.
4- You have an inappropriate skateboard and its components
5- Or [link|https://skatingplay.com/best-complete-skateboards/|you are riding the skateboard with the wrong setup|new_window=true]