network_connections_log_parser.py triggering "list index out of range" with MongoDB 3.6 log

[laudares]

./network_connections_log_parser.py ~/Percona/tmp/mongo3.6.log 
list index out of range
list index out of range
(...)
list index out of range
list index out of range

Completed processing of log file /home/fernando/Percona/tmp/mongo3.6.log:
- Number of recorded connections: 14
- Number of precessed seconds: 0

- Generated JSON file: /home/fernando/Percona/tmp/mongo3.6.log.json

- Generated CSV file: /home/fernando/Percona/tmp/mongo3.6.log.csv