Tried to Zap ETH to Dai, got http 400 "Error retrieving trade"

[MKong]

Steps to reproduce

1. Go to https://iearn.finance/zap

2. Connect using Metamask

3. Select "ETH" under "I have", and put in an ETH amount under "Send amount" (e.g 1 ETH).

4. Click "Trade"

What happens

"Trade" buttons becomes un-clickable after clicking on it (cursor:pointer; disappears) and error appears in console:

request.js:150 GET https://api-v2.dex.ag/trade?from=eth&to=dai&fromAmount=1&dex=best 400
asyncToGenerator.js:6 Uncaught (in promise) 
i {name: "StatusCodeError", statusCode: 400, message: "400 - "{\"error\":\"Error retrieving trade\"}"", error: "{"error":"Error retrieving trade"}", options: {…}, …}
name: "StatusCodeError"
statusCode: 400
message: "400 - "{\"error\":\"Error retrieving trade\"}""
error: "{"error":"Error retrieving trade"}"
options: {uri: "https://api-v2.dex.ag/trade?from=eth&to=dai&fromAmount=1&dex=best", transform: undefined, simple: true, resolveWithFullResponse: false, callback: ƒ, …}
response: t.IncomingMessage {_readableState: b, readable: false, _events: {…}, _eventsCount: 4, _maxListeners: undefined, …}
stack: "StatusCodeError: 400 - "{\"error\":\"Error retrieving trade\"}"↵    at new i (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:3173480)↵    at q.callback (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:3172323)↵    at q.e.callback.t.callback [as _callback] (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:3171371)↵    at q.t._callback.t.callback.t.callback (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:3317790)↵    at q.s.emit (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:230027)↵    at q.<anonymous> (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:3330707)↵    at q.s.emit (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:230027)↵    at t.IncomingMessage.<anonymous> (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:3329527)↵    at Object.f (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:228306)↵    at t.IncomingMessage.s.emit (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:230084)↵    at M (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:905327)↵    at https://iearn.finance/static/js/2.d87191b1.chunk.js:2:613983↵    at p.run (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:132630)↵    at h (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:132124)↵From previous event:↵    at P.L [as _captureStackTrace] (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:3108307)↵    at P._resolveFromExecutor (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:3138103)↵    at new P (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:3131321)↵    at q.init (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:3171213)↵    at q.e.request.Request.init (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:3170546)↵    at new q (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:3316759)↵    at s (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:3175853)↵    at https://iearn.finance/static/js/main.a963f63c.chunk.js:1:275501↵    at u (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:1491434)↵    at Generator._invoke (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:1491187)↵    at Generator.forEach.e.<computed> [as next] (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:1491791)↵    at n (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:115834)↵    at s (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:116037)↵    at https://iearn.finance/static/js/2.d87191b1.chunk.js:2:116096↵    at new Promise (<anonymous>)↵    at e.<anonymous> (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:115977)↵    at e._getDexAgTrade (https://iearn.finance/static/js/main.a963f63c.chunk.js:1:275640)↵    at https://iearn.finance/static/js/main.a963f63c.chunk.js:1:274864↵    at u (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:1491434)↵    at Generator._invoke (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:1491187)↵    at Generator.forEach.e.<computed> [as next] (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:1491791)↵    at n (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:115834)↵    at s (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:116037)↵    at https://iearn.finance/static/js/2.d87191b1.chunk.js:2:116096↵    at new Promise (<anonymous>)↵    at e.<anonymous> (https://iearn.finance/static/js/2.d87191b1.chunk.js:2:115977)↵    at e._callTrade (https://iearn.finance/static/js/main.a963f63c.chunk.js:1:275187)↵    at e.trade (https://iearn.finance/static/js/main.a963f63c.chunk.js:1:274551)"
__stackCleaned__: true
__proto__: Error
constructor: ƒ i(e,t,r,n)
__proto__: Object