Issue Getting daily cron error via email every day

[Johnny9977]

I've a problem. Since some months I'm getting this error via email every night when Plesk runs the daily crons:

flock: failed to execute /opt/alt/python35/bin/python3: No such file or directory

I have no idea how I can fix this. Please help me! Thanks.

 

[IgorG]

Just find related cron task with this strange path and remove this cron task.

 

[Johnny9977]

But which task? I've no idea which one makes the problems.

 

[Monty]

But which task? I've no idea which one makes the problems.

You have a cron task defined somewhere on your system, outside of Plesk. So you need to check all your cron jobs of all users.

You can list cronjobs for a certain user with "crontab -l -u <user>", for example:

crontab -l -u user1

crontab -l

(for the root user)

Also, search for "python35" or "python3" in all files in all those locations:
/var/spool/cron/
/var/spool/cron/crontabs/
/etc/crontab
/etc/cron.d/
/etc/cron.daily/
/etc/cron.weekly/
/etc/cron.hourly/
/etc/cron.monthly/

And be sure to read this: Newbie: Intro to cron

 

[scotty]

I've a problem. Since some months I'm getting this error via email every night when Plesk runs the daily crons:

flock: failed to execute /opt/alt/python35/bin/python3: No such file or directory

I have no idea how I can fix this. Please help me! Thanks.

Hi Johnny,
after having a similar problem after removing Imunify360 from the server, I found this and used it to clean up the rubbish Plesk never does.

sudo apt-get purge imunify360*

Have a read for yourself and see if this helps you further

Regards Scotty