KRAKEN API returne error for a BUY or SELL

[sfdu]

hi,

using ZENBOT version 4.0.5 on a linux computer and I got this error during a BUY:

Error:
order rejected
at /home/stephane/crypt/zenbot/lib/engine.js:240:23
at KrakenClient. (/home/stephane/crypt/zenbot/extensions/exchanges/kraken/exchange.js:276:20)
at Request._callback (/home/stephane/crypt/zenbot/node_modules/kraken-api/kraken.js:155:23)
at Request.self.callback (/home/stephane/crypt/zenbot/node_modules/request/request.js:186:22)
at emitTwo (events.js:126:13)
at Request.emit (events.js:214:7)
at Request. (/home/stephane/crypt/zenbot/node_modules/request/request.js:1060:10)
at emitOne (events.js:116:13)
at Request.emit (events.js:211:7)
at IncomingMessage. (/home/stephane/crypt/zenbot/node_modules/request/request.js:980:12)
at Object.onceWrapper (events.js:313:30)
at emitNone (events.js:111:20)
at IncomingMessage.emit (events.js:208:7)
at endReadableNT (_stream_readable.js:1056:12)
at _combinedTickCallback (internal/process/next_tick.js:138:11)
at process._tickCallback (internal/process/next_tick.js:180:9)
order:
{ id: null,
status: 'rejected',
price: '24.42900000',
size: '1.63285849',
created_at: 1512222415958,
filled_size: '0',
post_only: true,
reject_reason: 'Kraken API returned error: General:Invalid arguments:expiretm' },
desc: 'could not execute buy: error placing order' }

Can't find where the problem is...

[sfdu]

after a new installation - problem solved.