I don't know if I'm addressing the error message to this thread correctly, but there is a mention of fashion in the thread. If I'm wrong, please let me know where to go with this:
Spoiler
4664694 [Thread-3] DEBUG mmm.missions.DefenseMission - checkRollResultAndReRoll: invasion=true, roll=0.281, roll_result=true; roll_expires_ts=28.7 days, cool_down_end_ts=58.6 days, fleet_expiration_ts=inf
4664694 [Thread-3] DEBUG mmm.missions.DefenseMission - checkRollResultAndReRoll: invasion=true, roll=null, roll_result=true; roll_expires_ts=28.7 days, cool_down_end_ts=58.6 days, fleet_expiration_ts=inf
4664695 [Thread-3] DEBUG mmm.missions.DefenseMission - No existing fleets found; generating new fleet
4664695 [Thread-3] DEBUG mmm.missions.DefenseMission - computeFleetSize: target_fp=1,140, player_fp=526, station_fp=120, fp range: (316, 323) fleets range: (3, 3)
4664695 [Thread-3] DEBUG mmm.missions.DefenseMission - createEnemyFleets: player_fp=526, station_fp=120, fp_range=(646, 1,220), fp_per_fleet=380, target_fp=1,140, difficulty=846
4664695 [Thread-3] DEBUG mmm.missions.DefenseMission - eligible reinforcement factions: [derelict, sindrian_diktat, hegemony, independent, lions_guard, luddic_church, luddic_path, mercenary, omega, persean, pirates, remnant, tritachyon, player, blade_breakers, vantanet, star_federation, sotf_taken, plague, ironshell, scalartech_elite, sotf_dustkeepers, kesteven, scalartech_requisitions, sector, ix_battlegroup, ix_core, domain, fob, uaf_automata, diableavionics, enigma, uaf_november, sotf_dustkeepers_proxies, dassault_mikoyan, interstellarimperium, keruvim, ed_shipyard_faction, cabal, ocua, apex_design, JYD, ironsentinel, prot_ops, sephira_nightravens, uaf, sephira_conclave, everything, dme_independentmkt, scalartech, kadur_remnant, al_ars, adversary, scavengers, 6eme_bureau, ai_all, templars, high_priority_targets, qamar_insurgency, xhanempire, unitedpamed]
4664696 [Thread-3] DEBUG mmm.missions.DefenseMission - pickReinforcementFactions picked: [sotf_dustkeepers, diableavionics]
4664696 [Thread-3] WARN org.magiclib.campaign.MagicFleetBuilder - Warning during Onyx Station Invasion Fleet generation.
Reason: flagshipVariant null and variantsPath null was specified, but flagship could not be created.
Will try to fall back to the first ship in the fleet.
4665337 [Thread-3] ERROR com.fs.starfarer.combat.CombatMain - java.lang.AbstractMethodError
java.lang.AbstractMethodError
at com.fs.starfarer.api.util.Misc.getMemberStrength(Misc.java:4773)
at com.fs.starfarer.campaign.fleet.FleetData.updateFleetPointsUsed(Unknown Source)
at com.fs.starfarer.campaign.fleet.FleetData.syncIfNeeded(Unknown Source)
at com.fs.starfarer.campaign.fleet.FleetData.sort(Unknown Source)
at com.fs.starfarer.campaign.fleet.FleetData.sort(Unknown Source)
at data.scripts.campaign.plugins.dustkeepers.SotfDustkeeperFleetCreator.createFlee t(SotfDustkeeperFleetCreator.java:292)
at com.fs.starfarer.api.impl.campaign.fleets.FleetFactoryV3.createFleet(FleetFactoryV3.java:156)
at org.magiclib.campaign.MagicFleetBuilder.generateRandomFleet(MagicFleetBuilder.java:726)
at org.magiclib.campaign.MagicFleetBuilder.createFleet(MagicFleetBuilder.java:451)
at org.magiclib.campaign.MagicFleetBuilder.create(MagicFleetBuilder.java:98)
at mmm.missions.OrbitalMissionBase.createFleet(OrbitalMissionBase.java:388)
at mmm.missions.DefenseMission.createFleet(DefenseMission.java:871)
at mmm.missions.DefenseMission.createEnemyFleets(DefenseMission.java:949)
at mmm.missions.DefenseMission.create(DefenseMission.java:423)
at com.fs.starfarer.api.impl.campaign.missions.hub.BaseHubMission.createAndAbortIf Failed(BaseHubMission.java:707)
at com.fs.starfarer.api.impl.campaign.missions.hub.HubMissionBarEventWrapper.addPr omptAndOption(HubMissionBarEventWrapper.java:92)
at com.fs.starfarer.api.impl.campaign.rulecmd.missions.BarCMD.showOptions(BarCMD.java:279)
at com.fs.starfarer.api.impl.campaign.rulecmd.missions.BarCMD.execute(BarCMD.java:154)
at com.fs.starfarer.campaign.rules.A.execute(Unknown Source)
at com.fs.starfarer.campaign.rules.Object.runScript(Unknown Source)
at com.fs.starfarer.api.impl.campaign.rulecmd.FireBest.applyRule(FireBest.java:106)
at com.fs.starfarer.api.impl.campaign.rulecmd.FireBest.execute(FireBest.java:51)
at com.fs.starfarer.api.impl.campaign.rulecmd.FireBest.fire(FireBest.java:57)
at com.fs.starfarer.api.impl.campaign.RuleBasedInteractionDialogPluginImpl.fireBes t(RuleBasedInteractionDialogPluginImpl.java:177)
at com.fs.starfarer.api.impl.campaign.RuleBasedInteractionDialogPluginImpl.optionS elected(RuleBasedInteractionDialogPluginImpl.java:210)
at com.fs.starfarer.ui.newui.W$1.o00000(Unknown Source)
at com.fs.starfarer.ui.newui.B.actionPerformed(Unknown Source)
at com.fs.starfarer.ui.o0O0.buttonPressed(Unknown Source)
at com.fs.starfarer.ui.int.?00000(Unknown Source)
at com.fs.starfarer.ui.int.processInput(Unknown Source)
at com.fs.starfarer.ui.o0O0.processInputImpl(Unknown Source)
at com.fs.starfarer.ui.R.processInput(Unknown Source)
at com.fs.starfarer.ui.z.dispatchEventsToChildren(Unknown Source)
at com.fs.starfarer.ui.z.processInputImpl(Unknown Source)
at com.fs.starfarer.ui.newui.B.processInputImpl(Unknown Source)
at com.fs.starfarer.ui.R.processInput(Unknown Source)
at com.fs.starfarer.ui.O00oOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO$Oo.processInputImpl(Unknown Source)
at com.fs.starfarer.ui.R.processInput(Unknown Source)
at com.fs.starfarer.ui.z.dispatchEventsToChildren(Unknown Source)
at com.fs.starfarer.ui.z.processInputImpl(Unknown Source)
at com.fs.starfarer.ui.O00oOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO.processInputImpl(Unknown Source)
at com.fs.starfarer.ui.R.processInput(Unknown Source)
at com.fs.starfarer.ui.z.dispatchEventsToChildren(Unknown Source)
at com.fs.starfarer.ui.z.processInputImpl(Unknown Source)
at com.fs.starfarer.ui.public.processInputImpl(Unknown Source)
at com.fs.starfarer.ui.newui.W.processInputImpl(Unknown Source)
at com.fs.starfarer.ui.R.processInput(Unknown Source)
at com.fs.starfarer.ui.z.dispatchEventsToChildren(Unknown Source)
at com.fs.starfarer.ui.z.processInputImpl(Unknown Source)
at com.fs.starfarer.ui.R.processInput(Unknown Source)
at com.fs.starfarer.campaign.CampaignState.processInput(Unknown Source)
at com.fs.starfarer.BaseGameState.traverse(Unknown Source)
at com.fs.state.AppDriver.begin(Unknown Source)
at com.fs.starfarer.combat.CombatMain.main(Unknown Source)
at com.fs.starfarer.StarfarerLauncher.o00000(Unknown Source)
at com.fs.starfarer.StarfarerLauncher$1.run(Unknown Source)
at java.lang.Thread.run(Thread.java:748)