My Masternode is giving me 0 rewards.

I had 48 hours without reward, I have restarted wallet and started masternode again. Now its 2 days 8 hours and again 0 rewards. Everything was working fine before. What can be reason of it? I have VPS on OVH they had some issues - maybe something with it?

But I have other MNs on OVH's VPS and they are working just fine.