This message most often appears in the log of the MoonBot terminal, which is installed on a dedicated server, and it reports that there is an API or CPU (processor) overload. To fix this kind of error you need to:
1) Go to Menu-System Setting and check “VDS optimized mode”.
2) Reboot your computer
3) Check the device manager and make sure that third-party processes on the server does not load its resources, and if necessary, disable processes that cause CPU load.
4) Check the methods of connecting to the exchange and API loading, the API loading icon must be green.
5) If there are many strategies running in the MoonBot terminal, leave only one strategy for testing, which will place orders on no more than 5 coins to reduce the load on the API
6) Check that the API limits are not exceeded and the exchange did not impose a ban on trade.
If the above methods did not lead to a positive result, then for more detailed advice, ask for help in the Moon Bot Public Telegram group: https://t.me/Moon_Bot_Public