Answer

Answer
Is your internet connection fast enough to load the game? If you're not sure about it, please send us a screenshot of your speedtest result.
Try running the game on a different browser or using Standalone Flash Player.
Can you please post a screenshot of Tanki window while the screen is gray?
Try emptying your browser cache (Ctrl+Shift+Del) or enter the game through this link: fixit.tankionline.com
Thanks , but did not solve the problem
Answer
Is your internet connection fast enough to load the game? If you're not sure about it, please send us a screenshot of your speedtest result.
Try running the game on a different browser or using Standalone Flash Player.