Browsers being stupid.

Hello guys, i seem to be having problems with my browsers to watch Streams on <REMOVED> it seems fine for other people but not me. im running win10 laptop and it was fine last week. the site uses Adrobe flash player to watch the stream. and i used FireFox and i get this message popping up all the time thats saying, A script on this page may be busy, or it may have stop responding. You can stop the script now open the script debugger, or let it go. im getting that message on FF, and on Chorme the cast is not even showing a stream here. i then use Microsoft Edge browser and it switches the stream off till i refresh it to watch again...

any help please so i can fix this.. the browsers were fine last weekend till now.