More important problems
It's possible that the solution you have to the problem you're trying to solve isn't the solution that's needed, or wanted.
Or, more often, it's possible that the problem you've chosen to solve isn't as important or impactful as you had hoped.
Whatever the case, you can't make a living solving problems that no one has, or by offering solutions that no one needs.
Fortunately, though, there are many other problems (and ways of solving them).
More important ones, indeed.