Hi guys, I was creating a new Salesforce community by selecting a new template in my dev environment. Does anybody know how to activate template ALOHA that is locked by default ? Thanks in advance.

 

I was working on a module on Trailhead - Use REST API (API Basics ) and finished the challenge with workbench. However,  the 'Check Challenge' does not work with the following error: 

Challenge Not yet complete... here's what's wrong: 
There was an unexpected error while verifying this challenge. Usually this is due to some pre-existing configuration or code in the challenge Org. We recommend using a new Developer Edition (DE) to check this challenge. If you're using a new DE and seeing this error, please post to the developer forums and reference error id: SELIQWNT


Can anybody let me know how to get this fixed so that I can continue with the module ? Thanks in advance.