On a test board I could open the bans. Ofc no bans there so it was just an empty page.
However. Previously from other board we had a complaint, they couldn't open bans because they filled it up. Maybe this is the case and you issued too many bans.
I don't think there is a limit by design, I think there is just too many for the engine to handle.

>>29028
Yep, I was mistaken about any board. The bans list for /pol/ won't open (504 Gateway) but /news/ will. Seems you're right. The combination of daily banning the gay porn and animal mutilation from /pol/ plus Shiban and my bans of the shit pics must have overloaded it.