These are pings.
Ther’s some info about what these codes mean here…
I think the Cmd Error is because the previous data sent by the device was odd…
And the server responded that it didn’t understand. I’m not sure what caused this, but it seems to be device side (outgoing data) rather than a server side issue.
Maybe posting your code would help to identify possible causes.
It seems that you have Blynk debugging enabled, and also core level debugging via the IDE. This is handy for debugging, but probably not ideal for long term use as it adds to the device’s overhead.
I was born and raised around the Derbyshire/Nottinghamshire border and worked as a photographer for British Coal, based out of Bestwood, back in the late 70’s and 80’s. Eventually moved to London in the early 90’s, but still have friends and family in the area, so visit now and again.
Pete.