Error

"503 first byte timeout" is displayed in the AppExchange site.

It is due to a Salesforce Known Issue. Refresh the page or try again later. If access is still not available after 2-3 h...
ErrorInstall
Error

"We didn't find any Salesforce accounts linked to your Trailblazer.me profile. To create an account, sign up for a free trial of Salesforce." is displayed in the Install screen.

This may be a connection issue between your Salesforce account and Trailblazer. Contact Salesforce Help.
ErrorInstall