These messages are super old:
Hourly/Daily/Yealy:
If you see an error on this check then please make sure by going to System / Settings / Cron History that the (hourly|daily|yearly) cron has been executing every (hour|day|year) (there should be a record for each run) and if there is any issue on the result of the execution (an error will be shown). If you dont see (hourly|daily|yearly) records then you are most likely missing crontab settings on your linux system, please review crontab settings at System / Settings / Crontab
If you are an enterprise customer send this error log please to support
Is the same message for all three crontabs, simply adjust the hourly. daily, yearly string.