Block in blynk

hi everybody. there were problems with the Internet, in connection with which a lot of notifications went to blynk, as a result, several 8266 boards were blocked. how do I unblock it?

Can you explain what the means in more detail please?
Have you tried restarting your router and the ‘blocked’ boards?

Pete.

Rebooting the router did not help, 3 of the 4 boards were offline. Changing the token and re-loading the sketch helped, but not the first time. we will have to reconfigure Siri, which is not very fast(

Can you share your code ? May be there is something that may be causing the issue.