Here is the log from around the time of the error, I myself have no Idea what most of it means besides the fact that "[EXC 19:34:36.281] NullReferenceException: Object reference not set to an instance of an object
ModuleRCS.FixedUpdate () " is the reacurring problem
[WRN 19:34:35.455] Part already contains resource 'ElectricCharge'
[LOG 19:34:35.461] -INFO- Tac.LifeSupportModule[FFF36A52][287.01]: OnAwake
[WRN 19:34:35.461] Could not create PartResource of type 'CO2
[LOG 19:34:35.551] -INFO- Tac.LifeSupportModule[FFF36A28][287.01]: OnAwake
[LOG 19:34:35.569] PartLoader: Part 'SovietPack/Parts/MIR/MIR_KVANT_core/Kvant1/Kvant_1' has no database record. Creating.
[LOG 19:34:35.592] -INFO- Tac.LifeSupportModule[FFF369B2][287.01]: OnAwake
[LOG 19:34:35.608] DragCubeSystem: Creating drag cubes for part 'Kvant.1'
[LOG 19:34:35.746] PartLoader: Compiling Part 'SovietPack/Parts/MIR/MIR_KVANT_solar/KvantSolar/Kvant_1_Solar_Panel'
[WRN 19:34:35.754] PartLoader Warning: Variable RSSROConfig not found in Part
[ERR 19:34:35.757] Cannot find a PartModule of typename 'KASModuleGrab'
[LOG 19:34:35.780] PartLoader: Part 'SovietPack/Parts/MIR/MIR_KVANT_solar/KvantSolar/Kvant_1_Solar_Panel' has no database record. Creating.
[LOG 19:34:35.795] DragCubeSystem: Creating drag cubes for part 'Kvant.1.Solar.Panel'
[LOG 19:34:35.984] PartLoader: Compiling Part 'SovietPack/Parts/MIR/MIR_RCS/part/Mir_RCS_ThrusterBlock'
[WRN 19:34:35.992] PartLoader Warning: Variable RSSROConfig not found in Part
[ERR 19:34:35.995] N2O4 not found in resource database. Propellant Setup has failed.
[EXC 19:34:35.996] NullReferenceException: Object reference not set to an instance of an object
ModuleRCS.SetupPropellant (.ConfigNode node)
ModuleRCS.OnLoad (.ConfigNode node)
PartModule.Load (.ConfigNode node)
Part.AddModule (.ConfigNode node)
PartLoader.ParsePart (.UrlConfig urlConfig, .ConfigNode node)
PartLoader+.MoveNext ()
[EXC 19:34:36.031] NullReferenceException: Object reference not set to an instance of an object
ModuleRCS.FindThrusters ()
ModuleRCS.OnStart (StartState state)
Part.ModulesOnStart ()
Part+.MoveNext ()
[EXC 19:34:36.064] NullReferenceException: Object reference not set to an instance of an object
ModuleRCS.FixedUpdate ()
[EXC 19:34:36.068] NullReferenceException: Object reference not set to an instance of an object
ModuleRCS.FixedUpdate ()
[EXC 19:34:36.068] NullReferenceException: Object reference not set to an instance of an object
ModuleRCS.FixedUpdate ()
[EXC 19:34:36.080] NullReferenceException: Object reference not set to an instance of an object
ModuleRCS.FixedUpdate ()
[EXC 19:34:36.101] NullReferenceException: Object reference not set to an instance of an object
ModuleRCS.FixedUpdate ()
[EXC 19:34:36.122] NullReferenceException: Object reference not set to an instance of an object
ModuleRCS.FixedUpdate ()
[EXC 19:34:36.140] NullReferenceException: Object reference not set to an instance of an object
ModuleRCS.FixedUpdate ()
[EXC 19:34:36.161] NullReferenceException: Object reference not set to an instance of an object
ModuleRCS.FixedUpdate ()
[EXC 19:34:36.182] NullReferenceException: Object reference not set to an instance of an object
ModuleRCS.FixedUpdate ()
[EXC 19:34:36.200] NullReferenceException: Object reference not set to an instance of an object
ModuleRCS.FixedUpdate ()
[EXC 19:34:36.221] NullReferenceException: Object reference not set to an instance of an object
ModuleRCS.FixedUpdate ()
[EXC 19:34:36.242] NullReferenceException: Object reference not set to an instance of an object
ModuleRCS.FixedUpdate ()
[EXC 19:34:36.260] NullReferenceException: Object reference not set to an instance of an object
ModuleRCS.FixedUpdate ()
[EXC 19:34:36.281] NullReferenceException: Object reference not set to an instance of an object
ModuleRCS.FixedUpdate ()