>> RadialSpinBooster >>
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
loading binary model from C:/Users/Kevin/Desktop/KSP/KSP_Data\../Parts\RadialSpinBooster/mesh/mesh1.msh
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
loading binary model from C:/Users/Kevin/Desktop/KSP/KSP_Data\../Parts\RadialSpinBooster/mesh/mesh2.msh
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
loading binary model from C:/Users/Kevin/Desktop/KSP/KSP_Data\../Parts\RadialSpinBooster/mesh/mesh3.msh
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
loading binary model from C:/Users/Kevin/Desktop/KSP/KSP_Data\../Parts\RadialSpinBooster/mesh/mesh4.msh
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
loading binary model from C:/Users/Kevin/Desktop/KSP/KSP_Data\../Parts\RadialSpinBooster/mesh/mesh5.msh
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
loading binary model from C:/Users/Kevin/Desktop/KSP/KSP_Data\../Parts\RadialSpinBooster/mesh/mesh6.msh
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
loading binary model from C:/Users/Kevin/Desktop/KSP/KSP_Data\../Parts\RadialSpinBooster/mesh/mesh7.msh
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
loading tangents for nozzle... expect 528 tangents
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
loading tangents for body... expect 36 tangents
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
loading tangents for fairing... expect 156 tangents
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
loading tangents for axles... expect 120 tangents
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
loading tangents for supports... expect 48 tangents
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
loading tangents for collider... expect 30 tangents
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
loading tangents for Regroup01... expect 132 tangents
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
tangents done
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
.
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
Cfg Parsing...
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
SolidRocket attachRules: AttachRules
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
added node_attach at 0.27, 0, 0, 1, 0, 0
(Filename: C:/BuildAgent/work/b0bcff80449a48aa/Runtime/ExportGenerated/StandalonePlayer/UnityEngineDebug.cpp Line: 43)
ArgumentException: The thing you want to instantiate is null.
at UnityEngine.Object.CheckNullArgument (System.Object arg, System.String message) [0x00000] in <filename unknown>:0
at UnityEngine.Object.Instantiate (UnityEngine.Object original) [0x00000] in <filename unknown>:0
at PartLoader.ParsePartCfg () [0x00000] in <filename unknown>:0
at PartLoader.doProcessPart (UnityEngine.GameObject[] mdls, Boolean partLabMode) [0x00000] in <filename unknown>:0
at PartLoader.startPartAssembly (UnityEngine.GameObject[] mdls) [0x00000] in <filename unknown>:0
at PartSerializer+<loadBinaryMesh>c__Iterator5.MoveNext () [0x00000] in <filename unknown>:0
(Filename: Line: -1)
Help me, it keeps doing this after i used the Factory tool to edit a copy and give this one a white flame instead of blue(solid rocket)
eDIT:
Never mind, fixed it.
Also:

They don't come any bigger.
22,000 max thrust, overheats in 2 seconds at max burn.
eats fuel at 700 when max burning.
Built to Jebediah's exact specifications: "I want it huge, unstable, prone to overheating and a good chance it will blow up if you look at it from the wrong angle. I didn't become an Kerbalnaut for an easy ride, dammit!". Handle with extreme care (or not at all if you have any sense).