Error message: insufficient storage on Explore App when using my inReach Explorer device

I own a old inReach Explorer device that I bought when it was still offered by Delorme before Gramin bought it.

It still works fine and I’ve been using it for years with the Explore app.

Recently when I start the Earthmate app I get a message that I have insufficient storage,  To delete data that I know longer need to use and that if this doesn’t work to reinstall the app.

I have removed EVERYTHING (messages, routes, waypoint, etc) except 24 waypoints.  But the error message still doesn’t go away.  And the explore remains froze.

The only thing that allows my inReach and Earthmate to work with each other is to reinstall the Explore app,

that works fine until I reboot my ipad then the insufficient storage error comes back and the Earthmate app is frozen.

anybody else ran into this?   Do you have a solution or workaround?   Thanks