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URL: smb://10.10.10.254/UsbDisk1_Volume1/
Issues
AppleTV clears it's cache which uninstalls Kodi's Add-Ons.
TvOS grants 500Kb of permanent storage. Everything else is in a "cache" directory which can be cleared by tvOS whenever it sees fit.
https://forum.kodi.tv/showthread.php?tid=329625
If you're stuck using a fire stick and are unable to upgrade to a better device, then you need to use the "EZ Maintenance" addon. You can set it to auto clear cache, but more importantly you can set the preset for running a weak device, which should increase your overall performance.
Install openwizard addon and set auto cleanup of cache on startup.