Could not start Telegram Desktop

[2016.11.26 12:21:28] Launched version: 10019, alpha: [FALSE], beta: 0, debug mode: [FALSE], test dc: [FALSE]

[2016.11.26 12:21:28] Executable dir: C:/Users/Reza/AppData/Roaming/Telegram Desktop/, name: Telegram.exe

[2016.11.26 12:21:28] Initial working dir: C:/Users/Reza/AppData/Roaming/Telegram Desktop/

[2016.11.26 12:21:28] Working dir: C:/Users/Reza/AppData/Roaming/Telegram Desktop/

[2016.11.26 12:21:28] Arguments: "C:\Users\Reza\AppData\Roaming\Telegram Desktop\Telegram.exe"

[2016.11.26 12:21:28] Logs started

[2016.11.26 12:21:28] Connecting local socket to Global\e46b93575710e55e3b6a560b9ded52e1-{87A94AB0-E370-4cde-98D3-ACC110C5967D}...

[2016.11.26 12:21:28] This is the only instance of Telegram, starting server and app...

[2016.11.26 12:21:28] Could not copy 'log_start0.txt' to 'C:/Users/Reza/AppData/Roaming/Telegram Desktop/log.txt' to start new logging!

[2016.11.26 12:21:28] FATAL: Could not move logging to 'C:/Users/Reza/AppData/Roaming/Telegram Desktop/log.txt'!