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If you look at the scripts on this one, it's much more simple. It also works consistently instead of showing #ERROR all the time when the IP address gets blocked. It wouldn't be too big of a deal to take from this one and update your existing sheet.

I will probably mess with yours now.
I do a lot of spreadsheets for work so I am always trying to make them how I like them. Also make them as automated as possible.
The spreadsheet really do give you a great snapshot of how things are going.