-#[letsencrypt renewal]
+##############
+
+#[letsencrypt_renewal]
# run the letsencrypt certificate renewal process every 4 hours.
-37 */4 * * * letsencrypt renew &>>/tmp/letsencrypt_last_run.txt
+# fixing issues in renewal by setting PATH.
+PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+37 */4 * * * (date ; letsencrypt renew) &>> /tmp/${CRONUSER}-cron-letsencrypt_renewal.txt
+
+##############