If the status of your database displays "Loading failed" this is the result of an attempt of loading a database Dump that was unsuccessful. The aims is to inform that the last operation of loading did not complete as expected and you are therefore using the current dataset.
If you use push-to-cloud method to load the data you would have received a comprehensive error message detailing the reason (ideally use the verbose switch). But if you use the Aura Console to load the data and if the load is failed, the only message you get is "Loading failed" and no other details will be displayed.
Underneath the database will be running fine and the status remain in the "Loading failed" state until you have successfully loaded another dump file.
The status looks like as below (greyed out "Loading failed"):