If the game won't fully load try clearing your cache, closing, and restarting your browser.
To switch from mobile to desktop:
enter a game
click the menu in lower right corner
click the settings gear icon
Scroll down in that menu for "switch to desktop" button
Thread with pictures
https://forum.callofwar.com/index.php?thread/20688-my-archive-problem/&postID=138551#post138551
