The problem was solved and the device was manually added uuid and key
But a new log appears as follows
Thu Dec 3 15:29:26 2020 daemon.err openwisp: Failed to retrieve checksum: HTTP/1.1 404 Not Found
When removing the addition manually and adding the device automatically, it is after removing the device from the console by typing shared_secret
Log is like this
Thu Dec 3 15:32:00 2020
daemon.info openwisp: Registering device...
Thu Dec 3 15:32:00 2020 daemon.err openwisp: Invalid url: missing X-Openwisp-Controller header
Thu Dec 3 15:32:05 2020
daemon.info openwisp: Registering device...
Thu Dec 3 15:32:06 2020 daemon.err openwisp: Invalid url: missing X-Openwisp-Controller header
Thu Dec 3 15:32:11 2020
daemon.info openwisp: Registering device...
Thu Dec 3 15:32:11 2020 daemon.err openwisp: Invalid url: missing X-Openwisp-Controller header
Thu Dec 3 15:32:16 2020
daemon.info openwisp: Registering device...
Thu Dec 3 15:32:16 2020 daemon.err openwisp: Invalid url: missing X-Openwisp-Controller header
Thu Dec 3 15:32:21 2020
daemon.info openwisp: Registering device...
Thu Dec 3 15:32:21 2020 daemon.err openwisp: Invalid url: missing X-Openwisp-Controller header
Thu Dec 3 15:32:21 2020
daemon.info procd: Instance openwisp_config::instance1 s in a crash loop 6 crashes, 0 seconds since last crash