@Monkeyshotgun: Does the error occur as soon as you open the app, or when you attempt to use a certain feature? If you press and hold on the Samsung Members app > Diagnostics > Camera, and follow the on screen prompts, does the issue persist, or dies it flag any issues? Similarly, dial *#0*# into your telephone keypad and select Megacam from the series of grey tiles. Does the error occur during this hardware test?
@Monkeyshotgun: If the issue has persisted in the *#0*# hardware test then your S10 will require an engineers inspection. If you're based in the UK or Ireland then please reach out to our support team via the link below, and an advisor will be able to make the necessary arrangements for you.
Please be aware that if your S10 is over 24 months old, or if the issue is deemed to be the result of physical or liquid damage, then a charge will be applicable to cover the cost of the service.