I can't be sure if snecko mod is the cause, but it's the last mod referenced before the crash. The entire log is long so I'll only post the end/relevant info.

EDIT: After Removing the mod, the save file that would crash upon relic selection now works fine, I'm a least 90% sure it was this mod.


Selected mod: SneckoMod
Selected relic: null. Regenerating if canSpawn is false.
Selected mod: SneckoMod
Selected relic: Snecko:Free3CostRelic. Regenerating if canSpawn is false.
Exception: java.lang.IllegalArgumentException: n must be positive
20:54:26.182 ERROR core.CardCrawlGame> Exception caught
java.lang.IllegalArgumentException: n must be positive
at com.badlogic.gdx.math.RandomXS128.nextLong(RandomXS128.java:110) ~[desktop-1.0.jar:?]
at com.badlogic.gdx.math.RandomXS128.nextInt(RandomXS128.java:99) ~[desktop-1.0.jar:?]
at com.megacrit.cardcrawl.random.Random.random(Random.java:52) ~[desktop-1.0.jar:?]
at relicBalancer.patches.GetRelicPatch.Prefix(GetRelicPatch.java:135) ~[relicBalancer.jar:?]
at com.megacrit.cardcrawl.dungeons.AbstractDungeon.returnRandomRelicKey(AbstractDungeon.java) ~[?:?]
at com.megacrit.cardcrawl.dungeons.AbstractDungeon.returnRandomRelic(AbstractDungeon.java:898) ~[?:?]
at com.megacrit.cardcrawl.rewards.chests.BossChest.<init>(BossChest.java:35) ~[desktop-1.0.jar:?]
at com.megacrit.cardcrawl.rooms.TreasureRoomBoss.onPlayerEntry(TreasureRoomBoss.java:66) ~[?:?]
at com.megacrit.cardcrawl.dungeons.AbstractDungeon.nextRoomTransition(AbstractDungeon.java:2320) ~[?:?]
at com.megacrit.cardcrawl.dungeons.AbstractDungeon.nextRoomTransition(AbstractDungeon.java:2182) ~[?:?]
at com.megacrit.cardcrawl.dungeons.AbstractDungeon.updateFading(AbstractDungeon.java:2849) ~[?:?]
at com.megacrit.cardcrawl.dungeons.AbstractDungeon.update(AbstractDungeon.java:2537) ~[?:?]
at com.megacrit.cardcrawl.core.CardCrawlGame.update(CardCrawlGame.java:878) ~[?:?]
at com.megacrit.cardcrawl.core.CardCrawlGame.render(CardCrawlGame.java:429) [?:?]
at com.badlogic.gdx.backends.lwjgl.LwjglApplication.mainLoop(LwjglApplication.java:225) [?:?]
at com.badlogic.gdx.backends.lwjgl.LwjglApplication$1.run(LwjglApplication.java:126) [desktop-1.0.jar:?]
Controllers: removed manager for application, 0 managers active
Game closed.Setting breakpad minidump AppID = 646570
Steam_SetMinidumpSteamID: Caching Steam ID: 76561198010492917 [API loaded no]