Perhaps you accidentally changed one of the letters on your keyboard to function as an emote? If so, check in your emotes tab to see if there is any "L" on the list. If you don't notice anything out of place, it could be causing problems for you if you have a foreign keyboard, in which some key functions may even cause your game to crash when pressed. If you go into your settings inside of the game, you can fiddle around in the "Controls" tab to readjust that key if you accidentally attributed it to a different function.
