Mayoral candidate Curtis Sliwa already has one problem to solve shall he win the election on Nov. 4: ensuring his older sister is on the list.

Sliwa’s “emotional healer” sibling, Aleta St. James , 77, arrived to Leesa Rowland and Larry Wohl’s Midnight At the Met Masquerade Ball — where guests were encouraged to “dress like it’s your last day of your life” — the Chelsea Industrial on Friday night, only to be told to kick rocks by “very rude” society flack, Norah Lawlor, a spy told Page Six.

A source told us St. James was invited as a plus one, but had failed to reply to an email to officially add her name to the RSVP list.

“Norah kept asking her her name, and she said, ‘You’re not on the list.’ She was really rude in front of everyone, and kept snapping at security to ‘escort her out,

See Full Page