Create "wyvern" from AI prompt creates error?

I’ll attach the prompt I used to generate the monster, but essentially, I’ve tried multiple times to paste this prompt to generate the monster, but a bug occurs.

Wyverns are often mistaken for dragons, and, though they are much smaller than their more famous kin and do not breathe fire, they are likewise extremely dangerous monsters. Especially feared are the so-called royal wyverns who, like their namesake monarchs, are exceptionally ornery and extremely deadly.

Wyvern

Medium dragon, unaligned

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• Armor Class 16 (natural armor)

• Hit Points 76 (8d8 + 40)

• Speed 20 ft., fly 40 ft.

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					STRDEXCONINTWISCHA
14 (+2)	20 (+5)	20 (+5)	8 (–1)	14 (+2)	9 (–1)

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• Damage Resistances Bludgeoning, Piercing, and Slashing From Nonmagical Attacks

• Damage Immunities Poison

• Condition Immunities Poisoned

• Senses Darkvision 60 Ft., passive Perception 12

• Languages —

• Challenge 5 (1800 XP)

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Actions

Multiattack. The wyvern makes two attacks. One with its beak and one with its tail.

Beak. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 8 (1d6 + 5) piercing damage.

Spit. Ranged Weapon Attack: +5 to hit, range 20/40 ft., one target. Hit: 8 (1d6 + 5) acid damage.

Talons. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 12 (2d6 + 5) slashing damage.

Tail. Melee Weapon Attack: +5 to hit, reach 10 ft., one target. Hit: 12 (2d6 + 5) slashing damage, plus 7 (2d6) poison damage.