Synthesis Pathcing Error

Pls help! I've decided to try Unleveled Commonwealth + CALIBER Damage Overhaul combo but I've never used Synthesis before. Every time I try to patch the game, Synthesis spits out an error log and I'm clueless as to what it's trying to convey to me. The game's version is 1.10.163.0 and it's been.. ahh... "borrowed", maybe that has to do with something (if that's the problem there's no way I'm getting it fixed in the current state of the world :D).

The log in question:

SubrecordException Synthesis.esp => CALIBER_WeaponModificationPerk (000802:Synthesis.esp<Perk>) => PRKE: Did not have expected EPFB record to go with the EPFT record Mutagen.Bethesda.Plugins.Exceptions.MalformedDataException: Did not have expected EPFB record to go with the EPFT record
   at Mutagen.Bethesda.Fallout4.PerkBinaryCreateTranslation.ParseEffects(IMutagenReadStream stream)+MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Mutagen.Bethesda.Fallout4.PerkBinaryOverlay.FillRecordType(OverlayStream stream, Int32 finalPos, Int32 offset, RecordType type, PreviousParse lastParsed, Dictionary`2 recordParseCount, TypedParseParams translationParams)
   at Mutagen.Bethesda.Plugins.Binary.Overlay.PluginBinaryOverlay.FillSubrecordTypes(OverlayStream stream, Int32 finalPos, Int32 offset, TypedParseParams translationParams, RecordTypeFillWrapper fill)   at Mutagen.Bethesda.Fallout4.Fallout4ModMixIn.<>c__DisplayClass17_0.<EnumerateMajorRecords>b__0(Exception e)
   at Noggog.EnumerableExt.Catch[T](IEnumerable`1 e, Action`1 onException)+MoveNext() in D:\a\CSharpExt\CSharpExt\Noggog.CSharpExt\Extensions\EnumerableExt.cs:line 287
   at Mutagen.Bethesda.Plugins.Binary.Translations.ModHeaderWriteLogic.RunProcessors(IModGetter mod)
   at Mutagen.Bethesda.Plugins.Binary.Translations.ModHeaderWriteLogic.WriteHeader(BinaryWriteParameters param, MutagenWriter writer, IModGetter mod, IModHeaderCommon modHeader, ModKey modKey)
   at Mutagen.Bethesda.Fallout4.Fallout4ModCommon.WriteParallel(IFallout4ModGetter item, MutagenWriter writer, BinaryWriteParameters param, ModKey modKey)
   at Mutagen.Bethesda.Fallout4.Fallout4ModBinaryWriteTranslation.Write(MutagenWriter writer, IFallout4ModGetter item, ModKey modKey, GroupMask importMask, BinaryWriteParameters param)
   at Mutagen.Bethesda.Fallout4.Fallout4ModBinaryTranslationMixIn.WriteToBinary(IFallout4ModGetter item, FilePath path, BinaryWriteParameters param, GroupMask importMask)
   at Mutagen.Bethesda.Fallout4.Fallout4Mod.Fallout4WriteBuilderInstantiator.Write(IFallout4ModGetter mod, BinaryWriteBuilderParams`1 param)
   at Mutagen.Bethesda.Fallout4.Fallout4Mod.Fallout4WriteBuilderInstantiator.WriteAsync(IFallout4ModGetter mod, BinaryWriteBuilderParams`1 param)
   at Mutagen.Bethesda.Plugins.Binary.Translations.BinaryModdedWriteBuilder`1.WriteAsync()
   at Synthesis.Bethesda.Execution.Running.Runner.PostRunProcessor.Run(IGroupRun groupRun, ModPath path, IReadOnlySet`1 blackListMod) in D:\a\Synthesis\Synthesis\Synthesis.Bethesda.Execution\Running\Runner\PostRunProcessor.cs:line 67
   at Synthesis.Bethesda.Execution.Running.Runner.RunAGroup.Run(IGroupRun groupRun, CancellationToken cancellation, DirectoryPath outputDir, RunParameters runParameters) in D:\a\Synthesis\Synthesis\Synthesis.Bethesda.Execution\Running\Runner\RunAGroup.cs:line 70
   at Synthesis.Bethesda.Execution.Running.Runner.RunAllGroups.Run(IGroupRun[] groups, CancellationToken cancellation, DirectoryPath outputDir, RunParameters runParameters) in D:\a\Synthesis\Synthesis\Synthesis.Bethesda.Execution\Running\Runner\RunAllGroups.cs:line 34
   at Synthesis.Bethesda.Execution.Running.Runner.ExecuteRun.Run(IGroupRun[] groups, CancellationToken cancellation, DirectoryPath outputDir, RunParameters runParameters) in D:\a\Synthesis\Synthesis\Synthesis.Bethesda.Execution\Running\Runner\ExecuteRun.cs:line 49
   at Synthesis.Bethesda.GUI.Services.Profile.Running.ExecuteGuiRun.Run(IEnumerable`1 groupRuns, PersistenceMode persistenceMode, Boolean localize, Boolean utf8InEmbeddedStrings, Nullable`1 headerVersionOverride, FormIDRangeMode formIDRangeMode, Language targetLanguage, Boolean masterFile, CancellationToken cancel) in D:\a\Synthesis\Synthesis\Synthesis.Bethesda.GUI\Services\Profile\Running\ExecuteGuiRun.cs:line 53
   at Synthesis.Bethesda.GUI.ViewModels.Profiles.Running.RunVm.<Run>b__39_1(Unit _) in D:\a\Synthesis\Synthesis\Synthesis.Bethesda.GUI\ViewModels\Profiles\Running\RunVm.cs:line 209