My video on premier pro timeline automatically stops and then I have to play it again and again as it keeps stopping

When I run my video on premiere pro timeline the video plays but it stops automatically like how I dont get it when it stops I have to play it again then it stops again and sometimes the video plays slow on timeline I tried fixing it like clear cache and everything changing to GPU acceleration and all ,downloaded studio driver from Nvidia as I have rtx 5060ti gigabyte graphics card but nothing worked and yeah with some videos the colors don’t match like the videos look washed out the video doesn’t look colorful like the original video does anyone have any answer..? Lemme know