If the game is crashing or you've found a bug, you should submit a "Support Ticket" directly to the developer: : Go to the Rockstar Support Portal.
: The pursuit of the "American Dream" and the cycle of violence [ 0.5.20 ]. gta-iv-game
: Open the in-game menu (Esc on PC, Options on PS, Menu on Xbox). Online Tab : Navigate to the "Online" section. Players : Select the "Players" list. Select User : Find the specific player you wish to report. If the game is crashing or you've found
While official servers for the original versions have changed over the years, reporting generally follows this path in Rockstar titles: Options on PS