Then check your logs, if the cronjob is really run. And if yes, try to log the output, perhaps it logs an error (even though it should be similar to what you do when you manually run the script on the shell as this user).
Then check your logs, if the cronjob is really run. And if yes, try to log the output, perhaps it logs an error (even though it should be similar to what you do when you manually run the script on the shell as this user).