Bug - Master Yi will not move where I want him to move

I encountered this bug when: Opened league of legends, logged in and chose solo summoners Rift. I waited for it to load. When it has finished loading I brought Dorans blade and a totem (as I normally do). But when I have tried to walk to bottom lane, it sent the path to the opposite nexus, this happened when I clicked anywhere on the map. I started buying items to stay active and not get kicked for not being able to play, but players in-game told me to restart the game. When I quit and it wouldn't let me join back, it kept saying something about my firewall, even though my firewall allowed network access for league of legends. So now I am facing a leaver-buster punishment for something that is not my fault and beyond my control. It would be much appreciated if someone took off the punishment and fixed the bug. Here is the link to the proof: []the(https://youtu.be/TtReAprjA7Y)