Please remember that Incident reports are mandatory in PrestoGP, after each race and preferrably within 1 week of race ending an Incident report must be made, this report will be to show in as much detail as you can what took place, if you can supply a video that would help too, if not then just timestamp will be enough.
Both parties involved will have a chance to give their own side to what happened and if they can agree between themselves who was at fault and what can be changed to avoid in the future then most likely no action will be taken from the Race Director, if an incident cannot be resolved between both parties then the Race Director will check the incident replay and after consulting fellow Admin, will make a decision and give any penalties needed.