Hello, what's wrong, network increased to 50-60 msol, difficulty too, we don't have 10% of network as is was before when we had 2-2.5 msol and network was 30 avg, now we have 3 msol and network is 55-60 msol, plus some pool throw from Nicehash 5-20 msol, network is unstabe, sometimes there is no blocks in network within 30 minutes
No, that is only *part* of the problem; the part you didn't mention is that your PPLNS settings might need adjusting if your pool no longer finds blocks at the same rate it used to.
EDIT - I'm also seeing about 50% of what I should be getting based on my hashrate and average difficulty over the last 24 hours.