SEMI-FIXED ERROR CODE 18 ON PLAY BUTTON

This worked for me so give it a try if want play LoL again:Login to your account of LoL then you will see the error as u know then go task manager then find LoL Client(s) and start ending them by pressing the end task button on the right corner below or by clicking the right click on the selected LoL Client(s) that end the program.More programs of LoL will open but end them also .Final Step start LoL again and the play button will be shown.THIS U MUST DO IT EVERY TIME WHEN U RESTART YOUR PC.IT HAPPENED TO ME TODAY 6/6/2019.I SAW A VIDEO ON THE LOL OF GARENA BUT IF YOU SEE IT YOU WILL BE CONFUSED I THINK.DON'T DOWNLOAD GARENA OR LOL OF GARENA ITS A GAME EXACTLY THE SAME WITH THE RIOT GAMES LOL AS WE KNOW IT BUT TOTTALLY DIFFERENT I WILL SHOW YOU THE VIDEO BUT DON'T TRY IT WITH GARENA ITS LIKE A FAKE LOL GAME.BUT WATCH IT TO HELP U.I ALREADY TRIED WITH GARENA AND I WAS DISAPOINTED.I WAS SEARCING WHAT IS GARENA WHY I HAVE NOW 2 GAME OF LOL .DONT DO DO THAT DO WHAT I TOLD U TO DO AND THE STEPS IN THE VIDEO BUT WITHOUT GARENA OK? I KNOW IF ANYONE FIND A BETTER SOLUTION OR RIOT SOLVE THIS PROBLEM SOON INFORM ME PLEASE. https://www.youtube.com/watch?v=lWPBFbBJ3mE