If you run into problem demo data import fails with a simple error message like “Import failed” or “Object, Object”. Please keep calm down and follow these steps:
1. Contact with your web host and ask them to increase those limits to a minimum as follows:
2. Reset your database, see instruction here. (WARNING: Reset the database will make you lost all the data of your current WordPress).
3. Re-import the demo data.
If you still not resolve this issue, kindly create a topic here to us for assistance within 24 hours.