Error Message when synchronizing

Dear all,

URL of experiment: no url yet, because experiment fails to synchronize.

Description of the problem:
When I try to synchronize my experiment, I get the following error message. (This message even occurs when I attempt to synchronize a brand new, almost empty experiment)

Any suggestions?

Best wishes,
Traceback (most recent call last):
File “C:\Program Files\PsychoPy\lib\site-packages\gitlab\”, line 304, in wrapped_f
return f(*args, **kwargs)
File “C:\Program Files\PsychoPy\lib\site-packages\gitlab\”, line 112, in get
server_data = self.gitlab.http_get(path, **kwargs)
File “C:\Program Files\PsychoPy\lib\site-packages\gitlab\”, line 662, in http_get
result = self.http_request(
File “C:\Program Files\PsychoPy\lib\site-packages\gitlab\”, line 628, in http_request
raise gitlab.exceptions.GitlabHttpError(
gitlab.exceptions.GitlabHttpError: 404: 404 Project Not Found

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File “C:\Program Files\PsychoPy\lib\site-packages\psychopy\projects\”, line 663, in project
self._project = self.session.gitlab.projects.get(
File “C:\Program Files\PsychoPy\lib\site-packages\gitlab\v4\objects\”, line 782, in get
return cast(Project, super().get(id=id, lazy=lazy, **kwargs))
File “C:\Program Files\PsychoPy\lib\site-packages\gitlab\”, line 306, in wrapped_f
raise error(e.error_message, e.response_code, e.response_body) from e
gitlab.exceptions.GitlabGetError: 404: 404 Project Not Found

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “C:\Program Files\PsychoPy\lib\site-packages\psychopy\app\builder\”, line 1374, in onPavloviaSync
pavlovia_ui.syncProject(parent=self, file=self.filename, project=self.project)
File “C:\Program Files\PsychoPy\lib\site-packages\psychopy\app\pavlovia_ui\”, line 743, in syncProject
if not project.localRoot or not Path(project.localRoot).is_dir():
File “C:\Program Files\PsychoPy\lib\site-packages\psychopy\projects\”, line 746, in localRoot
if self.project.path_with_namespace in knownProjects:
File “C:\Program Files\PsychoPy\lib\site-packages\psychopy\projects\”, line 666, in project
raise KeyError(f"Could not find GitLab project with id {}.")
KeyError: ‘Could not find GitLab project with id 268402.’