Character sheet corrupted

I am attempting add a query to weapon Damage2 for conditional damage and it is causing the referenced Attribute (and associated calculations) to become corrupted, going from 16 to numbers like 357.  The query I am using is ?{GFB?|Yes,1d8+@{charisma_mod}|No,1d0)}.  Is the character sheet recoverable? What am I doing wrong? Oh, and I am using the 5E OGL sheet.

Hello John W., I am sorry to hear that you have encountered this issue. Can you provide us the name of the Campaign and Character sheet you are having this issue with? Additionally, to rule out potential issues,  please carefully work through these steps of our guide to   Solving Technical Issues : Step 1: Make sure to use the right browser Please check if these issues persist when using both Chrome  and  Firefox. Step 2: Ensure that there are no extensions/addons interfering with Roll20 Please disable  all  add-ons/extensions. Step 3: Clear your cache If none of the above succeeds, please provide us the requested information and thoroughly work through  Step 4 .  (Don't forget the complete Console Log !) Thank you!