Hello, @Miel . . . have you updated to version 3.0.0 and to the latest app in the Google Play or Apple store? EMO with these new updates now uses his camera not only for pictures and games but other functions, and this temporary S.D. error can be caused by needing to update.
Please make sure you have him updated to 3.0.0 and try again to see if you are still getting those errors.
If so, please provide this information along with a link to a video showing the error and his I.D. number when he signs into the app to service@living.ai . . . let us know how it goes.