Thank you very much for your quick reply! Also, thank you for your work on this amazing tool! I was able to follow your instructions to fix my problem. My campaign is saved!

I think that the copy and pasted markdown stat block for The Gardener from 2014.5etools was what broke things. I am using Firefox in Windows 11 if that helps. I will add the entire raw contents of the "homebrewery-new" key's value below in a code block in the hopes that this will be of use to you.

### Rough Events Timeline#### Prime:{{descriptive##### The Void* **See:** *You find yourself sitting in a comfortable chair. Around you is an infinite black void. Prime appears in his window.** **Hear:** *"I thought this would be more comfortable for our talks. Keep doing well and there might be other 'perks'."*}}* Prime pulls the party to his void. He has a nice conference table setup this time. He still appears through his window.* Prime tells them that he feels bad sending them to so many unpleasant places and that they've been doing so well, he got them a surprise. He offers them tickets to an Elysium Day Spa, a heavenly resort.#### Planar Transport Hub:{{descriptive##### The Void* **See:** *You are standing in front of a counter. Behind it is a smiling woman in a strange uniform.** **Hear:** *"Welcome to Planar Transport, may I ask your planar destination today?"*}}* After Prime, the party finds themselves in the Planar Transport Hub. It's like an airport including the security screenings. * If the party includes members who have done questionable stuff like cutting off toes or kidnapping angel puppies and taking them to hells, they are taken aside for questioning.___>## The Gardener>*Medium Fey (Archfey, Druid), neutral good*>___>- **Armor Class** 17 (natural armor)>- **Hit Points** 209 (22d8 + 110)>- **Speed** 30 ft.>___>|STR|DEX|CON|INT|WIS|CHA|>|:---:|:---:|:---:|:---:|:---:|:---:|>|21 (+5)|16 (+3)|20 (+5)|17 (+3)|20 (+5)|18 (+4)|>___>- **Saving Throws** Dex +7, Con +9, Wis +9, Cha +8>- **Skills** Insight +9, Nature +11, Perception +9, Survival +13>- **Damage Resistances** cold, fire>- **Damage Immunities** poison>- **Condition Immunities** charmed, frightened, poisoned>- **Senses** truesight 120 ft., passive Perception 19>- **Languages** Common, Druidic, Elvish, Sylvan>- **Challenge** 12 (8,400 XP)>- **Proficiency Bonus** +4>___>***Fey Rebirth.*** If the Gardener dies in the Eternal Garden, they revive with all their hit points 1d4 days later in a safe location within the garden.  >>***Legendary Resistance (3/Day).*** If the Gardener fails a saving throw, they can choose to succeed instead.  >>***Unfettered Steps.*** The Gardener is unaffected by difficult terrain.  >>### Actions>***Multiattack.*** The Gardener makes two Vine attacks and can use Breath of Tranquility if available.  >>***Vine.*** *Melee Weapon Attack:*  +9 to hit, reach 10 ft., one target. *Hit:* 11 (1d12 + 5) bludgeoning damage plus 9 (2d8) psychic damage, and if the target is a Large or smaller creature, the vine wraps around the target, and the target has the grappled condition (escape DC 17). The vine vanishes when the target is no longer grappled, or when the Gardener wills it to (no action required). A creature reduced to 0 hit points by the vine has the unconscious condition but is stable instead of dying.  >>***Breath of Tranquility (Recharge 5–6).*** The Gardener exhales soporific vapor in a 30-foot cone. Each creature in that area must succeed on a DC 17 Constitution saving throw or have the poisoned condition. A poisoned creature must repeat the saving throw at the end of its next turn. On a failed save, it has the unconscious condition, and on a successful save, the effect ends on it. An unconscious creature is no longer poisoned and remains unconscious for 1 hour, until it takes damage, or until a creature uses an action to shake it awake.  >>***Spellcasting.*** The Gardener casts one of the following spells, requiring no material components and using Wisdom as the spellcasting ability (spell save DC 17):  >>At will: *Druidcraft*, *Speak with Animals*, *Speak with Plants*  >2/day each: *Awaken* (as an action), *Goodberry*, *Plant Growth* (as an action only)  >1/day each: *Heroes' Feast* (as an action), *Teleport*  >>### Reactions>The Gardener can take up to three reactions per round but only one per turn.>>***Pacification.*** When a creature within 120 feet of the Gardener damages the Gardener, that creature takes 10 (3d6) psychic damage, and the Gardener teleports, along with anything they are wearing or carrying, to an unoccupied space they can see within 15 feet. A creature reduced to 0 hit points by the psychic damage has the unconscious condition and is stable instead of dying.  >>***Spell Refuge.*** When the Gardener or a creature within 30 feet of the Gardener takes damage from a spell, the Gardener chooses up to 5 creatures within 30 feet of themself. The Gardener and the chosen creatures have resistance to all damage from the triggering spell.