1. Offline resources have not been downloaded or installed: Please ensure that offline resources related to English classes have been downloaded and installed correctly. Some offline resources need to be downloaded or updated manually.
2. Wrong storage location of resources: Check whether the storage location of offline resources is correct. Resource files need to be placed in a specific folder or path to be recognized by famous early education machines.
3. Offline resource versions don't match: Please confirm that the offline resource version is compatible with the software version of the famous school early education machine you use. If the versions do not match, the resource cannot be found.