This error must not be new since I have the same error on my test board gallery globals template and since I never had to edit that particular template before I was unaware of the error. I know most of the code has to be edited out but I am unable to access it. And I nor my members see any issues with the gallery due to this error.
Two questions, what exactly does that template do and will it cause issues if the template cannot be accessed? It is no doubt due to having Mod_Security enabled (they will not allow me to shut it down) but my webhosts want to charge me 29 Pounds (I live in the US so I am not sure what the exchange rate is) to have it looked into. They also say there is no guarantee it can be fixed.
Will I be ok if this particular template cannot be accessed?