I tried sending some ETH to the address just now, the transaction was pending for ages then it just disappeared. My Eth got returned to me by the looks of it, has the hard cap already been reached??? Noticed that the website hasn't updated the amount that has been raised all day.
Are there any issues at the moment?
This sounds like you ran out of gas for the transfer eth network is quite busy
Check ethgasstation.info for recommended safelow gwei setting and try again
If you provide the txnumber from your failed attempt I can maybe help recommend but from what you said it sounds like an outofgas error you can confirm on ethplorer