frozen

Hi I have noticed a strange issues this morning on my VU+ Uno 4k running OpenViX 5.1.032. HD channels are frozen picture but sound is playing in background SD channels are fine. I have tried manual scan to see if its a frequency issue but its still the same and ive also tried NIT_analyser.py...

Strange things happening on my second hand desktop as it now likes to freeze up and mouse or keyboard does nothing and time shows its frozen,also notice firefox now does not work. Dropped into guy and said nothing wrong but he had to install new firefox which now does not work again and pc...