League of Legends Beta Client not Logging me in, stuck at launch screen

So I've had the League of Legends Alpha client for a couple of months now, and once the Beta client released in addition with the recent patch, my client has not been working. Ever since the patch, I received a notification saying the patch failed to download, so I tried restarting the client and it would not open. I checked the task manager and couldn't even end the task, so I had to restart my computer. After restarting my computer, I noticed that the league shortcut on my desktop and taskbar had been missing. So I went to the League of Legends folder and opened the client from there. After logging in again, I was not able to play any games, as pressing the play button would do nothing, and none of my matches were on my match history. So I uninstalled the beta client, and now I cannot find a link to download it anywhere. I opened the legacy client and no prompt came up to download it. Launching the legacy client brings me to a broken beta client, which I cannot log in most of the time. Any help?