Doesn't look like these are error messages. There should be error messages that correspond to the error messages you see in the PostgreSQL log.
I excluded SUCCESS and DELETE PENDING results and included pg_wal
path and postgres.exe process.
Log file contains only few entries, BUFFER OVERFLOW and NAME NOT
FOUND
17:07:09,9618758 postgres.exe 11800
QueryAllInformationFile C:\Program
Files\PostgreSQL\13\data\pg_wal\000000010000001300000021 BUFFER
OVERFLOW CreationTime: 16.03.2021 20:04:57, LastAccessTime:
17.03.2021 16:58:43, LastWriteTime: 17.03.2021 16:58:43,
ChangeTime: 17.03.2021 16:58:43, FileAttributes: A,
AllocationSize: 16 777 216, EndOfFile: 16 777 216, NumberOfLinks:
1, DeletePending: False, Directory: False, IndexNumber:
0x38100000009ffb4, EaSize: 0, Access: Read Attributes,
Synchronize, Position: 0, Mode: Synchronous IO Non-Alert,
AlignmentRequirement: Byte
17:07:09,9624993 postgres.exe 11800
QueryAllInformationFile C:\Program
Files\PostgreSQL\13\data\pg_wal\000000010000001300000023 BUFFER
OVERFLOW CreationTime: 16.03.2021 20:04:57, LastAccessTime:
17.03.2021 17:07:09, LastWriteTime: 17.03.2021 17:07:09,
ChangeTime: 17.03.2021 17:07:09, FileAttributes: A,
AllocationSize: 16 777 216, EndOfFile: 16 777 216, NumberOfLinks:
1, DeletePending: False, Directory: False, IndexNumber:
0x20000000a010c, EaSize: 0, Access: Read Attributes, Synchronize,
Position: 0, Mode: Synchronous IO Non-Alert, AlignmentRequirement:
Byte
17:07:09,9630741 postgres.exe 11800
QueryAllInformationFile C:\Program
Files\PostgreSQL\13\data\pg_wal\000000010000001300000024 BUFFER
OVERFLOW CreationTime: 16.03.2021 20:04:57, LastAccessTime:
16.03.2021 20:05:12, LastWriteTime: 16.03.2021 20:05:12,
ChangeTime: 16.03.2021 20:15:24, FileAttributes: A,
AllocationSize: 16 777 216, EndOfFile: 16 777 216, NumberOfLinks:
1, DeletePending: False, Directory: False, IndexNumber:
0x20000000a010d, EaSize: 0, Access: Read Attributes, Synchronize,
Position: 0, Mode: Synchronous IO Non-Alert, AlignmentRequirement:
Byte
17:07:09,9636100 postgres.exe 11800
QueryAllInformationFile C:\Program
Files\PostgreSQL\13\data\pg_wal\000000010000001300000025 BUFFER
OVERFLOW CreationTime: 16.03.2021 20:04:57, LastAccessTime:
16.03.2021 20:05:12, LastWriteTime: 16.03.2021 20:05:12,
ChangeTime: 16.03.2021 20:15:24, FileAttributes: A,
AllocationSize: 16 777 216, EndOfFile: 16 777 216, NumberOfLinks:
1, DeletePending: False, Directory: False, IndexNumber:
0x20000000a010e, EaSize: 0, Access: Read Attributes, Synchronize,
Position: 0, Mode: Synchronous IO Non-Alert, AlignmentRequirement:
Byte
17:07:09,9641594 postgres.exe 11800
QueryAllInformationFile C:\Program
Files\PostgreSQL\13\data\pg_wal\000000010000001300000026 BUFFER
OVERFLOW CreationTime: 16.03.2021 20:04:57, LastAccessTime:
16.03.2021 20:05:13, LastWriteTime: 16.03.2021 20:05:13,
ChangeTime: 16.03.2021 20:15:24, FileAttributes: A,
AllocationSize: 16 777 216, EndOfFile: 16 777 216, NumberOfLinks:
1, DeletePending: False, Directory: False, IndexNumber:
0x20000000a010f, EaSize: 0, Access: Read Attributes, Synchronize,
Position: 0, Mode: Synchronous IO Non-Alert, AlignmentRequirement:
Byte
17:07:09,9659048 postgres.exe 11800 CreateFile
C:\Program Files\PostgreSQL\13\data\pg_wal IS DIRECTORY
Desired Access: Generic Read, Disposition: Open, Options:
Synchronous IO Non-Alert, Non-Directory File, Attributes: N,
ShareMode: Read, Write, Delete, AllocationSize: n/a
17:07:09,9661026 postgres.exe 11800
QueryAllInformationFile C:\Program
Files\PostgreSQL\13\data\pg_wal BUFFER OVERFLOW
CreationTime: 10.02.2021 14:07:18, LastAccessTime: 17.03.2021
17:07:09, LastWriteTime: 17.03.2021 17:07:09, ChangeTime:
17.03.2021 17:07:09, FileAttributes: D, AllocationSize: 196 608,
EndOfFile: 196 608, NumberOfLinks: 1, DeletePending: False,
Directory: True, IndexNumber: 0x1000000055e2b, EaSize: 0, Access:
Read Attributes, Synchronize, Position: 0, Mode: Synchronous IO
Non-Alert, AlignmentRequirement: Byte
17:07:09,9666396 postgres.exe 11800 CreateFile
C:\Program
Files\PostgreSQL\13\data\pg_wal\archive_status\000000010000001300000021.done
NAME NOT FOUND Desired Access: Read Attributes, Delete,
Disposition: Open, Options: Non-Directory File, Open Reparse
Point, Attributes: n/a, ShareMode: Read, Write, Delete,
AllocationSize: n/a
17:07:09,9667813 postgres.exe 11800 CreateFile
C:\Program
Files\PostgreSQL\13\data\pg_wal\archive_status\000000010000001300000021.ready
NAME NOT FOUND Desired Access: Read Attributes, Delete,
Disposition: Open, Options: Non-Directory File, Open Reparse
Point, Attributes: n/a, ShareMode: Read, Write, Delete,
AllocationSize: n/a
17:07:09,9668956 postgres.exe 11800 QueryDirectory
C:\Program Files\PostgreSQL\13\data\pg_wal NO MORE FILES
FileInformationClass: FileBothDirectoryInformation