Hello!
The stat block of the elemental spirit under the Summon Elemental spell has some errors (probably copied from the Construct Spirit stat block).
The following should be the correct text:
Armor Class: 11 + the level of the spell (natural armor)
Hit Points: 50 + 10 for each spell level above 4th
Speed; 40 ft.; burrow 40 ft. (Earth only); fly 40 ft. (hover) (Air only); swim 40 ft. (Water only)
STR 18 (+4); DEX 15 (+2); CON 17 (+3), INT 4 (-3); WIS 10 (+0); CHA 16 (+3)
Damage Resistances: acid (Water only); lightning and thunder (Air only); piercing and slashing (Earth only)
Damage Immunities: poison; fire (Fire only)
Condition Immunities: exhaustion, paralyzed, petrified, poisoned, unconscious
Senses: darkvision 60 ft. passive Perception 10
Languages: Primordial, understands the languages you speak
Challenge: -
Proficiency Bonus: equals your bonus
The actions look to be correct!