From Last 2 days
this shows when you have a misconfigured service plan. Check your service plans that show Mikrotik notation in yellow color and revert them. This issue will disappear.
On another note, the 2 days does not mean that your router is not sync since 2 days. It means that it is throwing errors for the users affected by the misconfigured service plan and it is unable to update them. But everything else is working normally, including the consumption graphs of those users.