An RSL error when launching the course indicates that there is a problem with your browser's flash plug in. It may be that it has become corrupted or that it is being blocked by a security firewall.
The first step is to reinstall the flash player, available for free download here: https://get.adobe.com/flashplayer/
Once installed, restart your browser and log back in.
if that fails, switch to a different browser like Google Chrome to see if the issue is resolved.
If a second browser has the same error, you are most likely operating behind a firewall in which case clicksafety.com may have to the firewall safelist. If it is a company connection, contact your company IT department to make this change.