vthr TTree Attribute error

Brief summary of issue

The ana_scans.py script terminates normally but reports a caught exception. The anaLog.log files shows that an AttributeError involving a TTree occurred.

Types of issue

Bug report

Expected Behavior

I have never successfully run the script before.

Current Behavior

[gemuser@gem904qc8daq gemdaq]$ ana_scans.py --scandate=current --ztrim=4 --anaType=scurve  2>&1 | tee -a ana_scurve_log.txt
Running jobs in parallel mode (using Pool(12))
Analysis Requested: scurve
Analysis Requested: scurve
Analysis Requested: scurve
Analysis Requested: scurve
Error: command exited with non-zero code 1
Error: command exited with non-zero code 1
Error: command exited with non-zero code 1
Error: command exited with non-zero code 1
[1, 1, 1, 1]
Normal termination
Results: [1, 1, 1, 1]
Caught non-Python Exception <type 'exceptions.SystemExit'>
[gemuser@gem904qc8daq gemdaq]$ cat /data/bigdisk/GEM-Data-Taking/GE11_QC8//GE11-VII-S-CERN-0001/scurve/current/anaLog.log
mkdir: cannot create directory ‘/data/bigdisk/GEM-Data-Taking/GE11_QC8//GE11-VII-S-CERN-0001/scurve//current/SCurveData’: File exists
Analyzing: '/data/bigdisk/GEM-Data-Taking/GE11_QC8//GE11-VII-S-CERN-0001/scurve//current/SCurveData.root'
Traceback (most recent call last):
  File "/opt/cmsgemos/bin/anaUltraScurve.py", line 298, in <module>
    vthr_list[event.vfatN][event.vfatCH] = event.vthr
AttributeError: 'TTree' object has no attribute 'vthr'

Steps to Reproduce (for bugs)

ssh to gemuser@gem904qc8daq from lxplus
execute "ana_scans.py --scandate=current --ztrim=4 --anaType=scurve 2>&1 | tee -a ana_scurve_log.txt"

Possible Solution (for bugs)

I have no idea.

Your Environment

Version used: Not sure
Shell used: bash

cms-gem-daq-project / gem-plotting-tools

vthr TTree Attribute error #98