Ontario Occupational Health and Safety Awareness training

I have a trailhead module listed under private training as its for Canadian employees only. It's called: Complete Training: Ontario Occupational Health and Safety Awareness. Within the module there is a link to a external website and you have to work through the content and do a test. The webiste keeps crashing and not allowing me to advance for past two weeks, it is not saving my history so I have to keep starting over. I have wasted hours on this. this is the link to the website: https://www.labour.gov.on.ca/english/hs/elearn/worker/foursteps.php