When initialize database , I'm getting "TypeError: documents must be a non-empty list" error

[tmddnr5410]

Short description

Evaluate Dagda. for image scan ,

Reproduction steps

Follow every step (pre-requisites) to install and start dagda:
Python3, MongoDB, Docker are higher versions than listed.
Installed all the requirements using pip3
Installed kernel-headers
Installed sysdig
Used sudo to install all the above packages

sudo python3 dagda.py start -d
sudo python3 dagda.py vuln --init'

I tried adding ram to solve the problem, running it on another PC, and also using AWS EC2. But I get the same error from the program every time.

### Expected results
Get a working state of the database.

Actual results

TypeError occurred: ('documents must be a non-empty list',)

### On which platforms did you notice this:
Please complete the following information:

• OS: Ubuntu 20.04
• Docker version: Latest

Backtrace

Unexpected exception of type TypeError occured: ('documents must be a non-empty list' )
docker.log

<dagda_server> <_init_or_update_db:155> <Unexpected exception of type TypeError occurred: ('documents must be a non-empty list',)>
Traceback (most recent call last):
File "/home/kupfer/git/dagda/dagda/api/dagda_server.py", line 150, in _init_or_update_db
db_composer.compose_vuln_db()
File "/home/kupfer/git/dagda/dagda/vulnDB/db_composer.py", line 92, in compose_vuln_db
self.mongoDbDriver.bulk_insert_rhsa(rhsa_list)
File "/home/kupfer/git/dagda/dagda/driver/mongodb_driver.py", line 112, in bulk_insert_rhsa
self.db.rhsa.insert_many(rhsa_list)
File "/usr/local/lib/python3.8/dist-packages/pymongo/collection.py", line 755, in insert_many
raise TypeError("documents must be a non-empty list")
TypeError: documents must be a non-empty list

I tried adding ram to solve the problem, running it on another PC, and also using AWS EC2. But I get the same error from the program every time.