Catch potential exception
Catch potential exception

See 06639c10d3f77e01bb63357c6946f3f244fb20b4

creationst/XCDYouTubeKit,creationst/XCDYouTubeKit,twobitlabs/XCDYouTubeKit,0xced/XCDYouTubeKit,mingsai/XCDYouTubeVideoPlayerViewController,creationst/XCDYouTubeKit,mingsai/XCDYouTubeVideoPlayerViewController,creationst/XCDYouTubeKit,twobitlabs/XCDYouTubeKit,0xced/XCDYouTubeKit,twobitlabs/XCDYouTubeKit,0xced/XCDYouTubeKit,twobitlabs/XCDYouTubeKit,mingsai/XCDYouTubeVideoPlayerViewController,0xced/XCDYouTubeKit,mingsai/XCDYouTubeVideoPlayerViewController