Olivier,
I did everything you said in the above, but I get:
2016-07-17 02:35:39 [Payments] [monacoin] Error detecting number of satoshis in a coin, cannot do payment processing. Tried parsing: {"result":0.00000000,"error":null,"id":1468715739376}
/home/bitcause/nomp/node_modules/async/dist/async.js:837
if (fn === null) throw new Error("Callback was already called.");
^
Error: Callback was already called.
at /home/bitcause/nomp/node_modules/async/dist/async.js:837:34
at /home/bitcause/nomp/node_modules/async/dist/async.js:3580:15
at /home/bitcause/nomp/node_modules/async/dist/async.js:339:29
at /home/bitcause/nomp/libs/paymentProcessor.js:98:21
at itemFinished (/home/bitcause/nomp/node_modules/stratum-pool/lib/daemon.js:156:36)
at /home/bitcause/nomp/node_modules/stratum-pool/lib/daemon.js:169:17
at parseJson (/home/bitcause/nomp/node_modules/stratum-pool/lib/daemon.js:85:17)
at IncomingMessage.
(/home/bitcause/nomp/node_modules/stratum-pool/lib/daemon.js:95:17)
at IncomingMessage.EventEmitter.emit (events.js:117:20)
at _stream_readable.js:920:16
2016-07-17 02:35:39 [Master] [Payment Processor] Payment processor died, spawning replacement...I try to setup monacoin with lyra2re2.
Thanks for your time!