My Roborock S4 continues giving me Internal Error #108. I have restarted the cleaner many times but the problem persist. Also the cleaner keeps saying to "check the filter as it might be wet or blocked. Fan speed has been temporarily lowered. It will be automatically restore after is cleaned". I replaced the filter by a new one and the same message continues. I have also deleted the map to see if that will help but both errors (internal error #108 & wet filter) remain. The cleaner will not operate for more than 6 min before prompting for error #108. Please advise any additional steps to fix this issue. Thanks.