I had similar error and support said that I had space issues. They ran this and if fixed my issue, the message went away.
If you encounter this issue again, you can try to free up some space by going to Apps > Develop Apps > Test Luup Code (Lua) and paste/execute the following lines one by one:
os.execute(?rm -rf /etc/cmh/ergy*?)
os.execute(?rm -rf /etc/cmh-firmware/mios*?)
os.execute(?reboot?)
Hope this helps your issue.
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