Ethereum matemask Ropsten测试网络从水龙头购买ETH

{“error”：“[ethjs query]在格式化RPC{“value”：{“code”：-32603，“message”：“请求太多”，“data”：{“originalError”：{}}，“stack”：“error:Too Many Requests\n在/www/node_modules/web3 provider engine/subviders/RPC.js:51:23\n请求时。”\u回调（/www/node_modules/web3 provider engine/subviders/RPC.js:53:11）\n at Request.self.callback（/www/node\u modules/Request/Request.js:185:22）\n at Request.emit（events.js:310:20）\n at Request.self.callback（/www/node\u modules/Request/Request.js:1076:12）\n at Object.onceWrapper（events.js:416:28）\n位于IncomingMessage.emit（events.js:322:22）\n位于endReadableNT（\u stream\u readable.js:1187:12）“}}}”