safari is not working properly

Hello, I have been using my safari since Nov 2020 (that is when i got my mac book air). but from the past few days it is not working properly. i am not able to quit safari and i am not able to see the name of the page on the tabs in safari. i have been using my mac without shutting it down since the past 3 days. At least if i cannot use, i want to quit safari. the quit safari option is completely disabled. please let me know if any one of you faced the same problem and got it solved.

i have attached an image. please help me with this problem.