Looks like the MINI you've been you-ifying hasn't been saved. If you'd like to come back and keep tinkering, save it and give it a sweet name so you can pick up where you left off
500 org.apache.sling.api.SlingException: Cannot get DefaultSlingScript: org.apache.sling.api.SlingException: Cannot get DefaultSlingScript: org.apache.sling.api.SlingException: Cannot get DefaultSlingScript: org.apache.sling.api.SlingException: Cannot get DefaultSlingScript: Identifier com.bmw.aems2.minidigital.models.productselector.ModelGroupModel cannot be correctly instantiated by the Use API
org.apache.sling.api.SlingException: Cannot get DefaultSlingScript: org.apache.sling.api.SlingException: Cannot get DefaultSlingScript: org.apache.sling.api.SlingException: Cannot get DefaultSlingScript: org.apache.sling.api.SlingException: Cannot get DefaultSlingScript: Identifier com.bmw.aems2.minidigital.models.productselector.ModelGroupModel cannot be correctly instantiated by the Use API
Cannot serve request to /content/MINI/marketUV4/mini_kz/ru_KZ/home/range/mini-5-door-hatch.html on this server