I have some errors as well recently plaing videos:
19:52:20 T:139687620499200 NOTICE: [YouTube-4.4.1] getXBMCVersion : '12.0'
19:52:20 T:139687620499200 NOTICE: [YouTube-4.4.1] buildVideoObject : '{'action': 'play_video', 'videoid': 'KYebpiRoeOc'}'
19:52:20 T:139687620499200 NOTICE: [StorageClient-2.5.0] 'get' : 'videoidcacheKYebpiRoeOc'
19:52:20 T:139687620499200 NOTICE: [StorageClient-2.5.0] '_sock_init' : ''
19:52:20 T:139687620499200 NOTICE: [StorageClient-2.5.0] '_sock_init' : 'Done: u'/home/vladi/.xbmc/temp/commoncache.socket''
19:52:21 T:139687620499200 NOTICE: [YouTube-4.4.1] _fetchPage : 'called for : {'api': 'true', 'link': 'http://gdata.youtube.com/feeds/api/videos/KYebpiRoeOc'}'
19:52:21 T:139687620499200 NOTICE: [YouTube-4.4.1] _fetchPage : 'got default:
http://gdata.youtube.com/feeds/api/videos/KYebpiRoeOc'
19:52:21 T:139687620499200 NOTICE: [YouTube-4.4.1] _fetchPage : 'got api'
19:52:21 T:139687620499200 NOTICE: [YouTube-4.4.1] _fetchPage : 'connecting to server...
http://gdata.youtube.com/feeds/api/videos/KYebpiRoeOc'
19:52:21 T:139687620499200 NOTICE: [YouTube-4.4.1] _fetchPage : 'done'
19:52:21 T:139687620499200 NOTICE: [YouTube-4.4.1] updateVideoIdStatusInCache : 'videoidcache'
19:52:21 T:139687620499200 NOTICE: [StorageClient-2.5.0] 'setMulti' : 'videoidcache'
19:52:21 T:139687620499200 NOTICE: [StorageClient-2.5.0] '_sock_init' : ''
19:52:21 T:139687620499200 NOTICE: [StorageClient-2.5.0] '_sock_init' : 'Done: u'/home/vladi/.xbmc/temp/commoncache.socket''
19:52:21 T:139687620499200 NOTICE: [YouTube-4.4.1] getVideoIdStatusFromCache : 'vidstatus-'
19:52:21 T:139687620499200 NOTICE: [StorageClient-2.5.0] 'getMulti' : 'vidstatus-'
19:52:21 T:139687620499200 NOTICE: [StorageClient-2.5.0] '_sock_init' : ''
19:52:21 T:139687620499200 NOTICE: [StorageClient-2.5.0] '_sock_init' : 'Done: u'/home/vladi/.xbmc/temp/commoncache.socket''
19:52:23 T:139687620499200 NOTICE: [StorageClient-2.5.0] 'set' : 'videoidcacheKYebpiRoeOc'
19:52:23 T:139687620499200 NOTICE: [StorageClient-2.5.0] '_sock_init' : ''
19:52:23 T:139687620499200 NOTICE: [StorageClient-2.5.0] '_sock_init' : 'Done: u'/home/vladi/.xbmc/temp/commoncache.socket''
19:52:23 T:139687620499200 NOTICE: [YouTube-4.4.1] extractVideoLinksFromYoutube : 'trying website: {'action': 'play_video', 'videoid': 'KYebpiRoeOc'}'
19:52:23 T:139687620499200 NOTICE: [YouTube-4.4.1] _fetchPage : 'called for : {'login': 'true', u'link': 'http://www.youtube.com/watch?v=KYebpiRoeOc&safeSearch=none'}'
19:52:23 T:139687620499200 NOTICE: [YouTube-4.4.1] _fetchPage : 'got default:
http://www.youtube.com/watch?v=KYebpiRoe...earch=none'
19:52:23 T:139687620499200 NOTICE: [YouTube-4.4.1] _fetchPage : 'got login'
19:52:23 T:139687620499200 NOTICE: [YouTube-4.4.1] _httpLogin : ''
19:52:23 T:139687620499200 NOTICE: [YouTube-4.4.1] _httpLogin : 'returning existing login info: xxxxxx'
19:52:23 T:139687620499200 NOTICE: [YouTube-4.4.1] _fetchPage : 'connecting to server...
http://www.youtube.com/watch?v=KYebpiRoe...earch=none'
19:52:23 T:139687620499200 NOTICE: [YouTube-4.4.1] _fetchPage : 'Setting cookie: PREF=f1=50000000&hl=en;'
19:52:23 T:139687620499200 NOTICE: [YouTube-4.4.1] _fetchPage : 'done'
19:52:23 T:139687620499200 NOTICE: [YouTube-4.4.1] isVideoAgeRestricted : '[]'
19:52:24 T:139687620499200 NOTICE: Previous line repeats 1 times.
19:52:24 T:139687620499200 NOTICE: [YouTube-4.4.1] scrapeWebPageForVideoLinks : ''
19:52:24 T:139687620499200 NOTICE: [YouTube-4.4.1] extractFlashVars : 'flashvars: {}'
19:52:24 T:139687620499200 NOTICE: [YouTube-4.4.1] extractVideoLinksFromYoutube : 'Couldn't find video url- or stream-map.'
19:52:24 T:139687620499200 NOTICE: [YouTube-4.4.1] _findErrors : ''
19:52:24 T:139687620499200 NOTICE: [YouTube-4.4.1] _findErrors : '1'
19:52:24 T:139687620499200 NOTICE: [YouTube-4.4.1] _findErrors : '2'
19:52:24 T:139687620499200 NOTICE: [YouTube-4.4.1] _findErrors : '4'
19:52:24 T:139687620499200 NOTICE: [YouTube-4.4.1] _findErrors : 'couldn't find any errors: {'status': 200, 'new_url': 'http://www.youtube.com/watch?v=KYebpiRoeOc&safeSearch=none', 'content': u'<!DOCTYPE html><html lang="en"><head> <script>\nvar yt = yt || {};yt.timing = yt.timing || {};yt.timing.data_ = yt.timing.data_ || {};yt.timing.tick = function(label, opt_time) {var tick = yt.timing.data_[\'tick\'] || {};tick[label] = opt_time || new Date().getTime();yt.timing.data_[\'tick\'] = tick;};yt.timing.info = function(label, value) {var info = yt.timing.data_[\'info\'] || {};info[label] = value;yt.timing.data_[\'info\'] = info;};yt.timing.reset = function() {yt.timing.data_ = {};};if (document.webkitVisibilityState == \'prerender\') {yt.timing.info(\'prerender\', 1);document.addEventListener(\'webkitvisibilitychange\', function() {yt.timing.tick(\'start\');}, false);}yt.timing.tick(\'start\');try {yt.timing.info(\'pt\', (window.gtbExternal && window.gtbExternal.pageT() ||window.external && window.external.pageT));} catch(e) {}if (window.chrome && window.chrome.csi) {yt.timing.info(\'pt\', Math.floor(window.chrome.csi().pageT));} </script>\n\n<script>var yt = yt || {};yt.preload =