Lets encrypt cron not working

Hello Everyone.
I am using ASTPP Version 4. this server installed almost 2 years. Everything is fine working just one common issue my letsencrypt never renewed automatically by the cron.
like its happend all the time. and every time i have to manually update the SSL.
can you please tell me what i should check in my server?

this is what i have in crontab
1 0 * * * /usr/bin/certbot renew >> /var/log/letsencrypt/letsencrypt.log

but if i manually run

/usr/bin/certbot renew

the certificate is renewed…
i am using custom https PORT in my server like

like this

thanks a million

You should check your system logs of course, or try running the renew command yourself.