Period Comparison template question - Tried to install and have error message

Google Sheets
1

I have a question about the Period Comparison template from Tiller Community Solutions.

I installed the template and i am having a error message:

Error Function UNARY_MINUS parameter 1 expects number values. But ‘Net Available’ is a text and cannot be coerced to a number.

I tried to restore and it just spins without any resolution.

What should i check or do to resolve this issue ? Thanks

2

Should i ask support ? what is the best way to get answers ?
Thank

3

Yes, I would contact support using the chat window in the lower right of the page at this link. I was able to install the template without an issue.