Thanks to both of you for your response. I have tried using the local as well as the remote option in settings and have sent the cron job by hand with the following results per the log file:
When using the local option the result is: 2018.11.04 09:06:56 CRONJOB Script: lcalcron:118 - Cron job started - Cron host: local
2018.11.04 09:06:56 CRONJOB Script: lcalcron:123 - Aborted.
When using the remote option the result is: 2018.11.04 09:17:39 CRONJOB Script: lcalcron:118 - Cron job started - Cron host: remote - Remote IP address: 188.8.131.52
2018.11.04 06:17:39 CRONJOB Script: lcalcron:216 - OK.
However, no email is received. Don't know if the responses from the log file provide any help to you.
I am using cronjob.org as the external site to send the cron job and have been since May of this year with no problems. I have sent them an email regarding their IP address and am waiting for a response. I will report back as I get a response from cronjob.org