Scoreboard objective criterion is called criteria

The bug

The command help and the feedback messages call a scoreboard objective criterion "criteria" (plural).

Note: Maybe (objective-) type would fit even better

Affected situations

• Syntax help

  scoreboard objectives add <objective> <criteria> <displayName>
  

• Invalid criterion feedback (Fixed)

  argument.criteria.invalid
  Unknown criteria
  

• Internal id

  minecraft:objective_criteria