For several weeks and in an apparent random pattern the docker tab will display this message from the image below.

While none of the dockers show up in webui some are still working while others are not reachable.

A reboot will solve the issue temporary until the issue shows up again.

These two lines might show a clue:

Jun 24 13:24:46 Tower monitor_nchan: Stop running nchan processes
Jun 24 19:49:21 Tower monitor_nchan: Stop running nchan processes

but I don't know how to find out what is creating this.

root@Tower:~# ps aux |grep nchan

root 3509 0.0 0.0 4228 2436 ? S Jun22 0:06 /bin/bash /usr/local/sbin/monitor_nchan

root 2985687 0.0 0.0 104708 31676 ? SL Jun24 0:00 /usr/bin/php -q /usr/local/emhttp/webGui/nchan/notify_poller

root 2985689 0.0 0.0 104700 30644 ? SL Jun24 0:00 /usr/bin/php -q /usr/local/emhttp/webGui/nchan/session_check

root 2985691 0.0 0.0 104768 30712 ? SL Jun24 0:00 /usr/bin/php -q /usr/local/emhttp/plugins/dynamix.system.temp/nchan/system_temp

root 2985694 0.0 0.0 104700 32428 ? SL Jun24 0:00 /usr/bin/php -q /usr/local/emhttp/webGui/nchan/wg_poller

root 2985696 0.0 0.0 104732 32268 ? SL Jun24 0:00 /usr/bin/php -q /usr/local/emhttp/webGui/nchan/update_1

root 2985698 0.3 0.0 104728 31736 ? SL Jun24 0:01 /usr/bin/php -q /usr/local/emhttp/webGui/nchan/update_2

root 2985700 0.2 0.0 104784 32996 ? SL Jun24 0:01 /usr/bin/php -q /usr/local/emhttp/webGui/nchan/update_3

root 3024662 0.0 0.0 4260 2032 pts/2 S+ 00:04 0:00 grep nchan

Thanks for any help on this problem.

tower-diagnostics-20250624-2344.zip

Uninstall the Connect plugin, reboot and retest.

Can I re-install the Connect plugin or should I wait for API updates in the upcoming versions?

I would wait for an update.