Solaris XLR mining issue

[Fourbio]

Hey,

I'm mining Solaris XLR coin with 6 gtx 1070 ti and 1 gtx 1080.
My problem is that on miner i see a stable 27000kh/s hashrate.
I mine on umine.org and seem that there is a problem.
Last days i only mine between 1.2 and 1.4 XLR per day but with my hashrate this is what i would mine if it was 600 difficulty.
Las days difficulty was between 400 and 450 i would have with my hashrate between 1.8 and 2 XLR per day.
My hashrate on mining website is verys volatile but seems to be in average 25000khs (already loose 2000khs vs miner) and after that seems to loose more.
Today i mine 0.057/hour
Umine thift ?
Bad miner ? i use  "ccminer krnlx-xevan for nVidia GPUs from alexis78@github"
Any idea ?

Thks for advices