After the general SDK calls tuya_ipc_ss_start_event or tuya_ipc_ss_set_write_mode, this error will appear in the log, indicating that the initialization of the storage module's directory has not yet been completed.
This phenomenon is mostly related to the implementation of the upper layer SD_STATUS_E tuya_ipc_sd_get_status(VOID). The SDK will internally call tuya_ipc_sd_get_status, and only after returning SD_STATUS_NORMAL can the storage directory initialization be completed. Please pay attention to the return value of this interface.