When you say homepage, this is AEM Admin page? Or is the homepage part of the site you built on AEM? In any case, for such errors, you need to troubleshoot, starting with the logs.
1. You are not able to set a higher heap size than 1GB. Please verify if there are any other system limitations - meaning, what is the memory in your computer and how much is free for AEM?2. If you have sufficient memory, try setting 4GB in a new aem instance to ensure the issue is something other t...