It says the server version is 3.4 and on the launcher there is version 3.4.4 but it hasn't been updated for a while. I downloaded the newest update of pixelspark and it didn't have those mods in it. So I'll probably just manually add them 
Posts by DarkStar
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I tried to load the server with infinity on it, and the server crashed on startup and no I don't have any console info, I switched it to a different pack.
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Request the packs you want from it.
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I think they only added all of the regular mods and no optional
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I don't know why Aternos re-added Tekkit Classic and FTB Infinity because they still don't work
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I launched the server with the PixelSpark pack, and it loads perfectly. I try joining the server and this is what it says in console.
[23:37:56] [Netty IO #3/INFO]: Rejecting connection CLIENT: [FMLMod:JABBA{1.2.1}, FMLMod:BiomesOPlenty{2.1.0}, FMLMod:customnpcs{1.7.10d}, FMLMod:IronChest{6.0.62.742}, FMLMod:BiblioCraft{1.10.3}, FMLMod:BiblioWoodsBoP{1.9}, FMLMod:harvestcraft{1.7.10g}]
Does that mean I don't have the mods? I didn't add any extra mods. Is the server pack fully updated to the pack aternos is using?
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Essentials but it isn't 1.8 yet
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The link doesn't work
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Some of the newer packs, as of what I have tried, can take a bit longer to start. So did you wait long enough?
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They don't allow uploading/adding single mods yet, sorry
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They get their plugins from dev.bukkit.org , the ones that are requested
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Try using Google translate. It might sound weird because Google translate translates weird but yeah
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Same happens for FTB infinity
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I think you mean crazy craft on the voids wrath launcher
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It was in effect for a while, but maybe something broke it
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Andreas, you know when you first create a world you can choose the type (default, amplified,flatland, etc) he wants you to add biomes of plenty to that list of options
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Sounds like it's just a way to add mods