Goodolvic

I'm trying to add a manual (https://segaretro.org/index.php?title=File:Instruments_of_Chaos_Sega_NA_Manual.pdf) to Instruments of Chaos Starring Young Indiana Jones but I keep getting blocked with this error: *** Forbidden. Please submit form again. Message seems to be spam. ***

I have tried reloading the page, and have also tried saving with no changes, and I always get the error. I just need to add this line to the Mega Drive, US box of the Physical scans section: | manual=Instruments of Chaos Sega NA Manual.pdf