The log file you attached is showing the conversion was successful and it was able to move the file to the destination NAS folder
INFORMATION> 2023-03-01T02:56:13 --> Job for \\MEDIACENTER\Recorded TV\La Brea_s02e14 The Journey, Part 2_WNBCDT_2023_02_28_22_00_04.wtv converted successfully to \\MEDIACENTER\Recorded TV\La Brea\La Brea - S02E14_2023_02_28.wtv using conversion task -> Move WTV Recorded TV and profile -> WTV Unprocessed
INFORMATION> 2023-03-01T02:56:13 --> Request to send eMail
2023-03-01T02:56:13 --> Server -> xxxxxxxxx
2023-03-01T02:56:13 --> Port -> 25
2023-03-01T02:56:13 --> SSL -> False
2023-03-01T02:56:13 --> Username -> xxxxxxxxx
2023-03-01T02:56:13 --> From -> xxxxxxxxx
2023-03-01T02:56:13 --> To -> xxxxxxxxx
2023-03-01T02:56:13 --> Subject -> MCEBuddy successfully converted a video
2023-03-01T02:56:13 --> Message -> Source Video -> \\MEDIACENTER\Recorded TV\La Brea_s02e14 The Journey, Part 2_WNBCDT_2023_02_28_22_00_04.wtv
Converted Video -> \\MEDIACENTER\Recorded TV\La Brea\La Brea - S02E14_2023_02_28.wtv
Profile -> WTV Unprocessed
Conversion Task -> Move WTV Recorded TV
Converted At -> 2023-03-01T02:56:13
Time taken to convert (hh:mm) -> 00:14
2023-03-01T02:56:13 MCEBuddy.Engine.Core --> No conversions running, allowing system sleep
2023-03-01T02:56:13 MCEBuddy.Engine.ConversionJob --> Starting Conversion Thread
INFORMATION> 2023-03-01T02:56:13 MCEBuddy.Engine.ConversionJob --> Creating log file : C:\Program Files\MCEBuddy2x\log\FBI International - S02E14_2023_02_28.wtv-Move WTV Recorded TV-1900-01-01T00-00-00.log
INFORMATION> 2023-03-01T02:56:13 MCEBuddy.Engine.Core --> Job for \\MEDIACENTER\Recorded TV\FBI International\FBI International - S02E14_2023_02_28.wtv started using conversion task -> Move WTV Recorded TV and profile -> WTV Unprocessed
2023-03-01T02:56:13 MCEBuddy.Engine.Core --> Temp working path is C:\Program Files\MCEBuddy2x\working0
2023-03-01T02:56:13 MCEBuddy.Engine.Core --> Starting new conversions, preventing system sleep
INFORMATION> 2023-03-01T02:56:14 --> Successfully send eMail
WARNING> 2023-03-01T02:56:25 MCEBuddy.Engine.QueueManager --> Monitor task E Drive Recorded TV : Unable to queue file for conversion - file inaccessible/locked by another process \\MEDIACENTER\Recorded TV\La Brea_s02e14 The Journey, Part 2_WNBCDT_2023_02_28_22_00_04.wtv
2023-03-01T02:56:26 MCEBuddy.Engine.QueueManager --> Monitor task E Drive Recorded TV : File \\MEDIACENTER\Recorded TV\FBI Most Wanted\FBI Most Wanted - S04E14_2023_02_28.wtv already converted with status OutputFromConversion
2023-03-01T02:56:26 MCEBuddy.Engine.QueueManager --> Monitor task E Drive Recorded TV : File \\MEDIACENTER\Recorded TV\La Brea\La Brea - S02E14_2023_02_28.wtv already converted with status OutputFromConversion
INFORMATION> 2023-03-01T03:10:28 MCEBuddy.Engine.QueueManager --> No accessible files founds in location \\MEDIACENTER\Recorded TV5 for monitor task I Drive Recorded TV5
INFORMATION> 2023-03-01T03:11:53 MCEBuddy.Engine.Core --> Job for \\MEDIACENTER\Recorded TV\FBI International\FBI International - S02E14_2023_02_28.wtv completed
2023-03-01T03:11:53 MCEBuddy.Engine.Core --> Deleting original file \\MEDIACENTER\Recorded TV\FBI International\FBI International - S02E14_2023_02_28.wtv
2023-03-01T03:11:53 MCEBuddy.Engine.QueueManager --> Deleting directory \\MEDIACENTER\Recorded TV\FBI International
ERROR> 2023-03-01T03:11:53 MCEBuddy.Engine.QueueManager --> Unable to read parent directory contents \\MEDIACENTER\Recorded TV\FBI International
System.IO.IOException: The directory is not empty.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.Directory.DeleteHelper(String fullPath, String userPath, Boolean recursive, Boolean throwOnTopLevelDirectoryNotFound, WIN32_FIND_DATA& data)
at System.IO.Directory.Delete(String fullPath, String userPath, Boolean recursive, Boolean checkHost)
at MCEBuddy.Engine.QueueManager.DeleteParentDirectoryChainIfEmpty(String filePath, String uptoParentFolder)
INFORMATION> 2023-03-01T03:11:53 --> Job for \\MEDIACENTER\Recorded TV\FBI International\FBI International - S02E14_2023_02_28.wtv converted successfully to \\MEDIACENTER\Recorded TV\FBI International\FBI International\FBI International - S02E14_2023_02_28.wtv using conversion task -> Move WTV Recorded TV and profile -> WTV Unprocessed
INFORMATION> 2023-03-01T03:11:53 --> Request to send eMail
2023-03-01T03:11:53 --> Server -> xxxxxxxxx
2023-03-01T03:11:53 --> Port -> 25
2023-03-01T03:11:53 --> SSL -> False
2023-03-01T03:11:53 --> Username -> xxxxxxxxx
2023-03-01T03:11:53 --> From -> xxxxxxxxx
2023-03-01T03:11:53 --> To -> xxxxxxxxx
2023-03-01T03:11:53 --> Subject -> MCEBuddy successfully converted a video
2023-03-01T03:11:53 --> Message -> Source Video -> \\MEDIACENTER\Recorded TV\FBI International\FBI International - S02E14_2023_02_28.wtv
Converted Video -> \\MEDIACENTER\Recorded TV\FBI International\FBI International\FBI International - S02E14_2023_02_28.wtv
Profile -> WTV Unprocessed
Conversion Task -> Move WTV Recorded TV
Converted At -> 2023-03-01T03:11:53
Time taken to convert (hh:mm) -> 00:15
2023-03-01T03:11:53 MCEBuddy.Engine.Core --> No conversions running, allowing system sleep
INFORMATION> 2023-03-01T03:11:55 --> Successfully send eMail
INFORMATION> 2023-03-01T03:15:26 MCEBuddy.Engine.QueueManager --> No accessible files founds in location \\MEDIACENTER\Recorded TV-C for monitor task C Drive Recorded TV-C
2023-03-01T03:15:31 MCEBuddy.Engine.QueueManager --> Monitor task E Drive Recorded TV : File \\MEDIACENTER\Recorded TV\FBI International\FBI International\FBI International - S02E14_2023_02_28.wtv already converted with status OutputFromConversion
However I do see other errors related to reading and deleting directories on the NAS. The files are locked or the NAS is denying access to these files/directories.
If you’re seeing issues with a NAS it’s normally a NAS issue. These can be cause of network issues, sharing issues with other computers, internal NAS issues (like date/time being incorrect which can cause access denials) etc. Was there an update to your NAS firmware recently? See this post also