For some reason when i attempt to play on online servers,The servers seem to not load and i cant click on them, and as far as i know the only solution to that is by uninstalling Minecraft and downloading it again and after i do that i can play, but if i shut down my PC and boot it the next day and attempt to play on online servers again, the same problem still exist.

Could you please advise me what should i do in this situation?