Flash crashed are normally 99.999% an issue on your computer. You have corrupted data packages normally or your flash memory has become full. Please note that flash cache is totally different than your browser cache. So you would have to do both. I can recommend a few things to try.. 1. clear browser cache: https://kb.iu.edu/d/ahic 2. clear flash cache: https://forums.adobe.com/thread/977699
If the above does not work you can also try uninstalling and
reinstalling the flash player. Flash some times has issues with
completely uninstalling old version of flash and they linger around. The link here https://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html will show you how to completely uninstall flash. Once it is done then go to https://www.adobe.com and at the bottom is the flash installer.