what error message are you getting

No clue ngl. It's confusing.

Something about it needing to be non-negative and less than the size of the collection.

Are you using remnants? If so, that breaks Spirit.
If not, post the whole error directly here without paraphrasing.

OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOH... I do have Remnants.

Sorry to intrude into this discussion here, but is there any potential at the issue with Spirit and Remnants being fixed or nah? Just curious

Idk I'm just glad I found the problem.

idk but it crashes my game every time i make a new world

i am having problem with world gen not because that i have remnants i have try using no mod and still i cant load the world with the spirit mod

I don't have remnants and I'm getting the same error of non-negative and the world refuses to make itself.

If any of you are using Builder's Essentials, that mod also currently breaks world generation. Otherwise, please join the Discord for further chat.

I'm not using that either.

[18:49:42.537] [Main Thread/FATAL] [tML]: Main engine crash

System.Collections.Generic.KeyNotFoundException: The given key '0' was not present in the dictionary.
at BAM.BAMTile.KillTile(Int32 i, Int32 j, Int32 type, Boolean& fail, Boolean& effectOnly, Boolean& noItem) in BAMSystem.cs:line 159
at Terraria.ModLoader.TileLoader.KillTile(Int32 i, Int32 j, Int32 type, Boolean& fail, Boolean& effectOnly, Boolean& noItem) in tModLoader\Terraria\ModLoader\TileLoader.cs:line 627
at Terraria.WorldGen.KillTile(Int32 i, Int32 j, Boolean fail, Boolean effectOnly, Boolean noItem) in tModLoader\Terraria\WorldGen.cs:line 45917
at SpiritMod.Tiles.Ambient.Kelp.OceanKelp.NearbyEffects(Int32 i, Int32 j, Boolean closer) in SpiritMod\Tiles\Ambient\Kelp\OceanKelp.cs:line 120
at DMD<System.Void Terraria.ModLoader.TileLoader:NearbyEffects(System.Int32, System.Int32, System.Int32, System.Boolean)>(Int32 i, Int32 j, Int32 type, Boolean closer)
at Hook<System.Void SerousCommonLib.API.Edits.NearbyEffectsBlocking::Hook_TileLoader_NearbyEffects(SerousCommonLib.API.Edits.NearbyEffectsBlocking+orig_TileLoader_NearbyEffects,System.Int32,System.Int32,System.Int32,System.Boolean)>(Int32 , Int32 , Int32 , Boolean )
at MagicStorage.Edits.NearbyEffectsBlockingDuringPylonScanningDetour.Hook_TileLoader_NearbyEffects(orig_TileLoader_NearbyEffects orig, Int32 i, Int32 j, Int32 type, Boolean closer) in MagicStorage\Edits\NearbyEffectsBlockingDuringPylonScanningDetour.cs:line 26
at Hook<System.Void MagicStorage.Edits.NearbyEffectsBlockingDuringPylonScanningDetour::Hook_TileLoader_NearbyEffects(MagicStorage.Edits.NearbyEffectsBlockingDuringPylonScanningDetour+orig_TileLoader_NearbyEffects,System.Int32,System.Int32,System.Int32,System.Boolean)>(Int32 , Int32 , Int32 , Boolean )
at SyncProxy<System.Void Terraria.ModLoader.TileLoader:NearbyEffects(System.Int32, System.Int32, System.Int32, System.Boolean)>(Int32 , Int32 , Int32 , Boolean )
at DMD<System.Void Terraria.SceneMetrics:ScanAndExportToMain(Terraria.SceneMetricsScanSettings)>(SceneMetrics this, SceneMetricsScanSettings settings)
at MoreMusicBoxRange.MoreMusicBoxRange.Hook_ScanAndExportToMain(orig_ScanAndExportToMain orig, SceneMetrics self, SceneMetricsScanSettings settings) in MoreMusicBoxRange.cs:line 26
at Hook<System.Void MoreMusicBoxRange.MoreMusicBoxRange::Hook_ScanAndExportToMain(Terraria.On_SceneMetrics+orig_ScanAndExportToMain,Terraria.SceneMetrics,Terraria.SceneMetricsScanSettings)>(SceneMetrics , SceneMetricsScanSettings )
at SyncProxy<System.Void Terraria.SceneMetrics:ScanAndExportToMain(Terraria.SceneMetricsScanSettings)>(SceneMetrics , SceneMetricsScanSettings )
at Terraria.Player.ForceUpdateBiomes() in tModLoader\Terraria\Player.cs:line 13667
at Terraria.Player.Spawn(PlayerSpawnContext context) in tModLoader\Terraria\Player.cs:line 30793
at Terraria.WorldGen.FinishPlayWorld() in tModLoader\Terraria\WorldGen.cs:line 2784
at Terraria.Main.ConsumeAllMainThreadActions() in tModLoader\Terraria\Main.cs:line 14077
at DMD<System.Void Terraria.Main:Update(Microsoft.Xna.Framework.GameTime)>(Main this, GameTime gameTime)
at Hook<System.Void ThoriumMod.UI.ThoriumInterfaceResources::OnResolutionChanged(Terraria.On_Main+orig_Update,Terraria.Main,Microsoft.Xna.Framework.GameTime)>(Main , GameTime )
at SpiritMod.Utilities.SpiritDetours.Main_Update(orig_Update orig, Main self, GameTime gameTime) in SpiritMod\Utilities\SpiritDetours.cs:line 161
at Hook<System.Void SpiritMod.Utilities.SpiritDetours::Main_Update(Terraria.On_Main+orig_Update,Terraria.Main,Microsoft.Xna.Framework.GameTime)>(Main , GameTime )
at SyncProxy<System.Void Terraria.Main:Update(Microsoft.Xna.Framework.GameTime)>(Main , GameTime )
at Microsoft.Xna.Framework.Game.Tick() in D:\a\tModLoader\tModLoader\FNA\src\Game.cs:line 546
at Microsoft.Xna.Framework.Game.RunLoop() in D:\a\tModLoader\tModLoader\FNA\src\Game.cs:line 878
at Microsoft.Xna.Framework.Game.Run() in D:\a\tModLoader\tModLoader\FNA\src\Game.cs:line 419
at Terraria.Program.RunGame() in tModLoader\Terraria\Program.cs:line 266
[18:49:42.549] [Main Thread/DEBUG] [TerrariaSteamClient]: Send: shutdown

That is my error crashing when loading into world for first time after generating. Made new character and world after adding spirit mod. Will do more testing let you know if I find more out.

Whatever BAM is is causing issues, disable it.