It looks like you’ve already tried most of the basic fixes (cache, browser, updates), so the issue is likely not on your side. In many similar cases, the problem is usually related to server-side issues, outdated game resources , or hardware limitations. 

Your system (older i5 CPU + GT 610 + 4GB RAM) is quite low for modern browser-based games, so even if everything is updated, the game can still fail to load properly or get stuck during initialization. Also, sometimes corrupted cache or incomplete updates can cause loading failures even when everything seems fine. 

You could try:

• 
  Running the game via a different device or newer system
  
• 
  Using the official launcher instead of browser
  
• 
  Reinstalling or clearing full cache again (including system temp files)
  

If you want to quickly check whether your CPU + GPU setup might be limiting performance or causing issues like this, this tool can help: