Ok, so there is something blocking the ispconfig script., might be a broken php module or a wrong setting in php.ini.
1) Comment out the server.sh cronjob in the root crontab by adding a # in front of the line. The crontab can be edited with the command:
Then Delete the ispconfig lock file:
rm -f /usr/local/ispconfig/server/tem/.ispconfig_lock
you should execute the command several times until you get the message that no such file exists. then run the server.sh script again and post the output that you get now.
and in cron.log still the same message:
Thats from apt and not ispconfig. its not related to the autoresponder problem and can be ignored at the moment.