GTA Online session is having trouble syncing error fix

The GTA Online session is having trouble syncing important catalogue data to the server error is a common issue that players have while playing the game. When it occurs, users won't be able to connect to a GTA Online lobby, even though their network and PC or console seem to be working correctly. It can be frustrating to find a fix for the GTA Online trouble synching error, but we've got a few suggestions below.