The YENTEN online wallet (https://wallet.yentencoin.info/ ) has been broken in order to send for some time.

When clicking on the send button, the request made is:
https://api.yentencoin.info/unspent/YS.....9?amount=1000000001000 the response is:
 error: null
id: “api-serverr”
result: [{txid: ....

However the web shows:
Failed Transaction broadcast failed 64: tx-size
And it does not continue with the transaction

I hope this is helpful.
Greetings.