In this thread we are having the same problem, I think. I zipped the error folder generated. KSP Version: 0.25.0 Installed Modules: V AJE 1.6.4 V CameraTools 1.2 V ConnectedLivingSpace 1.0.11.0 V CrossFeedEnabler v3.1 V CustomBiomes 1.6.8 V CustomBiomes-Data-RSS v8.3 V DDSLoader 1.7.0.0 V DeadlyReentry v6.2.1 V EngineIgnitor-Unofficial-Repack 3.4.1.1 V FerramAerospaceResearch v0.14.4 ? FShangarExtender 2.0 V HotRockets 7.25 V KerbalJointReinforcement v2.4.4 V LazTekSpaceXExploration-HD 2.1a V LazTekSpaceXHistoric-HD 1.1a V LazTekSpaceXLaunch-HD 3.1a V MechJeb2 2.4.0 V ModuleFixer 3 V ModuleManager 2.5.1 V ModuleRCSFX v3.3 V NBody 0.0 V PartCatalog 3.0_RC8 V PlanetShine 0.2.2 V ProceduralDynamics 0.9.1 V ProceduralFairings v3.10 V ProceduralParts v0.9.20 V RealChute 1.2.6 V RealEffects 1.0 V RealFuels rf-v8.1 V RealismOverhaul v7.0.2 V RealSolarSystem v8.3 V RemoteTech v1.5.1 V RemoteTech-Config-RSS 0.0 V RSSTextures8192 1.0 V SelectRoot 1.0 V SmokeScreen 2.5.0 V TACLS v0.10.1 V TACLS-Config-RealismOverhaul v7.0.2 ↑ TextureReplacer 2.0.1 V Toolbar 1.7.7 V Trajectories v1.0.0 V TweakScale v1.47 Legend: V - Up to date. ? - Incompatible. ↑ - Upgradable. ? - Unknown I hope it helps.