Thanks.
I don’t see anything in the log to suggest that SSL support is not present, only that the connection timed out:
Error Type: <class 'ssl.SSLError'>
Error Contents: ('The read operation timed out',)
I’ll try installing the addon myself when I get a chance and see if it works for me, as its more likely a network connection problem between you and youtube, or a bug in the addon.
Was it previously working for you in RC3 ? Also is your system date and time correct ?