Cumulus Support

I am getting this error message:
17/06/2018 10:57:14 AM : Error on line 10652 of E:\Cumulus\data\Jun18log.txt: List index out of bounds (1)
17/06/2018 10:57:15 AM : Error reading E:\Cumulus\data\Jun18log.txt at line 10652: List index out of bounds (1)
17/06/2018 10:57:15 AM : Please stop Cumulus and edit the file to correct the error
17/06/2018 10:57:15 AM : Error on line 10652 of E:\Cumulus\data\Jun18log.txt: List index out of bounds (1)
17/06/2018 10:57:15 AM : Error on line 10652 of E:\Cumulus\data\Jun18log.txt: List index out of bounds (1)
17/06/2018 10:57:20 AM : Error on line 10652 of E:\Cumulus\data\Jun18log.txt: List index out of bounds (1)

I looked at line 10652 by opening Jun18log.txt in Excel - Screenshot attached.
Notepad screenshot of same line also attached.
I can see no error. What am I missing??

Thanks.

Cumulus v1.9.4 build 1099

Use a better text editor such as notepad++, that will show the problem.

Thanks.
Just a few seconds work after installing Notepad++
Notepad++ showed a whole lot of 'NUL' entries that did not appear in Notepad or Excel.
I used Excel only to get the line number, but now I'll use Notepad++ as my default text editor - the line numbers are very helpful.
Thanks again!