I suggest reporting this to Opera and or the admins can report it to the creator of the system specs add on. This will likely be fixed soon though, as Opera is a major browser and this forum isn't one of a kind. It's a type of forum which is rented for use by anyone with a license. To that effect, the system specs feature is likely an add on. It's either custom made by a support of the forums or it's a generic add on available on a vBulletin Modification website. Either way, reporting the error will cause it to be fixed.