buildbot.tac error while initiating buildbot start my_master using latest version (3.11.1) of buildbot

[knana1662]

2024-03-29 18:05:46+0000 [-] Loading buildbot.tac...
2024-03-29 18:06:06+0000 [-] Loaded.
2024-03-29 18:06:06+0000 [-] twistd 23.10.0 (D:\Python310\python.exe 3.10.4) starting up.
2024-03-29 18:06:06+0000 [-] reactor class: twisted.internet.selectreactor.SelectReactor.
2024-03-29 18:06:06+0000 [-] Unhandled error in Deferred:
2024-03-29 18:06:06+0000 [-] Unhandled Error
Traceback (most recent call last):
File "buildbot.tac", line 27, in
m = BuildMaster(basedir, configfile, umask)
File "D:\Python310\lib\site-packages\buildbot\master.py", line 102, in init
self._services_d = self.create_child_services()
File "D:\Python310\lib\site-packages\twisted\internet\defer.py", line 2256, in unwindGenerator
return _cancellableInlineCallbacks(gen)
File "D:\Python310\lib\site-packages\twisted\internet\defer.py", line 2168, in _cancellableInlineCallbacks
_inlineCallbacks(None, gen, status, _copy_context())
--- ---
File "D:\Python310\lib\site-packages\buildbot\master.py", line 227, in startService
yield self._services_d
File "D:\Python310\lib\site-packages\twisted\internet\defer.py", line 2000, in _inlineCallbacks
result = context.run(gen.send, result)
File "D:\Python310\lib\site-packages\buildbot\master.py", line 188, in create_child_services
self.www = wwwservice.WWWService()
File "D:\Python310\lib\site-packages\buildbot\www\service.py", line 198, in init
self.apps = get_plugins('www', None, load_now=True)
File "D:\Python310\lib\site-packages\buildbot\plugins\db.py", line 367, in get_plugins
return _DB.add_namespace(namespace, interface, load_now)
File "D:\Python310\lib\site-packages\buildbot\plugins\db.py", line 317, in add_namespace
tempo.load()
File "D:\Python310\lib\site-packages\buildbot\plugins\db.py", line 254, in load
self._tree.load()
File "D:\Python310\lib\site-packages\buildbot\plugins\db.py", line 131, in load
child.load()
File "D:\Python310\lib\site-packages\buildbot\plugins\db.py", line 60, in load
self._value = self._loader(self._entry)
File "D:\Python310\lib\site-packages\buildbot\plugins\db.py", line 231, in _load_entry
traceback.print_exc()
File "D:\Python310\lib\traceback.py", line 179, in print_exc
print_exception(*sys.exc_info(), limit=limit, file=file, chain=chain)
File "D:\Python310\lib\traceback.py", line 121, in print_exception
print(line, file=file, end="")
builtins.OSError: [Errno 22] Invalid argument