the server is shutting down a lot of times

Hello support team. My server keeps shutting down automatically and unexpectedly while I am actively playing on it. I have checked the server console when this happens, and there are no crash reports or "Out of Memory" errors. Instead, the console shows a clean shutdown process (saying "All chunks are saved") followed immediately by "container@MCServerHost Server marked as offline". It seems like the host system is forcing my server to stop. Could you please check if this is due to resource limits, an aggressive system timeout, or something else? I would appreciate your help to keep the server stable. Thank you!