Bash script runs correctly but not on cron [closed]

I have a Bash script running on Ubuntu, it works well when I execute it using the bash command

bash join_tables.sh 

Inside the .sh file I've put

#!/bin/bashsource  activate agra_envcd /root/jupyterpython3 test_2.pyconda deactivate

The .sh file is in the root directory itself

I tried to do a system wide cronjob and I used this line of code

*/5 *    * * *   root    bash join_tables.sh 

This is the output I am getting

Apr 29 08:35:01 ubuntu-s-2vcpu-4gb-amd-nyc3-01 CRON[613616]: (root) CMD (   bash join_tables.sh)Apr 29 08:35:01 ubuntu-s-2vcpu-4gb-amd-nyc3-01 CRON[613615]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)Apr 29 08:35:01 ubuntu-s-2vcpu-4gb-amd-nyc3-01 CRON[613617]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1)Apr 29 08:35:01 ubuntu-s-2vcpu-4gb-amd-nyc3-01 CRON[613615]: pam_unix(cron:session): session closed for user root

So how do I make sure cron executes the bash file?