It works now. Is it correct this small hash rate?
yacminer version 3.5.0-yac2 - Started: [2016-02-04 19:51:18]
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(5s):19.00 (avg):26.00h/s | A:1 R:0 HW:0 U:0.42/m WU:0.42/m FB:0
ST: 2 SS: 0 NB: 5 LW: 26 GF: 0 RF: 0
Connected to yacoin.club diff 1 NF 17 with stratum as user
Block: 328bb391a1153892... Diff:17 Started: [19:53:22] Best share: 7
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[P]ool management [G]PU management ettings [D]isplay options [Q]uit
GPU 0: 62.0C 1176RPM | 27.00/ 26.00h/s | A:1 R:0 HW:0 U:0.42/m T:1 rI: 480
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[2016-02-04 19:51:17] Started yacminer 3.5.0-yac2
[2016-02-04 19:51:17] Probing for an alive pool
[2016-02-04 19:51:24] Network diff set to 17
[2016-02-04 19:51:24] Stratum from pool 0 detected new block
[2016-02-04 19:51:30] GPU 0: bufsize for thread @ 1728MB based on buffer-size
[2016-02-04 19:51:52] Stratum from pool 0 detected new block
[2016-02-04 19:52:04] Stratum from pool 0 detected new block
[2016-02-04 19:52:53] Accepted a2280b4b Diff 7/1 GPU 0
[2016-02-04 19:53:11] Stratum from pool 0 detected new block
[2016-02-04 19:53:22] Stratum from pool 0 detected new block