but I have not changed anything, this happened last night and I have not made any changes: / and not only to me has happened to me, if not to other faucets
You can read on possible causes of this error here:
http://dev.mysql.com/doc/refman/5.7/en/gone-away.html . Almost all point to hosting problems, which is also confirmed by the fact that you didn't change anything. Either your traffic increased a lot and your hosting plan can't handle that or the hosting company changed something.
I'm using godaddy.com Economy Package my daily avg. traffic is 2000-2500 & its never cause a problem even 4000 in start(Shity bots)
But last day my total visitors was just 700.I don't think its hosting problem and i didn't change anything in script in last 2 days.