MG 3620 error lights blink 26 times and then repeat

Hi,

I haven't found any thing like on DuckDuckGo or this forum.  Power and error lights alternate 26 times the WIFI indicator is on continuosly.  My computer sees the MG3620 but reports that it is offline.  Anybody have an idea what this means.  I haven't used the printer for at least a couple of years.

Thank you