If evidence does not exist, show error 404
Currently, the server shows error 500, which is misleading:
https://mark.kube.cylab.be/app/evidence/60f48efa108e4d7d77d715ea
Currently, the server shows error 500, which is misleading:
https://mark.kube.cylab.be/app/evidence/60f48efa108e4d7d77d715ea