Hello and thanks for the quick reply.
That is actually funny with the visitors, I have daily visits to the site (5.5k total views this month), and a lot of spam comments
I tried to install the plugin without success that was the error message
Debugging in WordPress
I installed another plugin
Advanced Cron Manager – debug & control
https://es.ww.wp.xz.cn/plugins/advanced-cron-manager/
But I can not do anything, again the same error message !!!
Thanks in advance
Heiko
