Cannot set actual local folder

I am trying to move my experiment online, after trying it out on the builder and seeing that everything works.
I have a folder where all the necessary files are, and where I have created it from scratch because the previous one didn’t work and I didn’t manage to edit it. When I try to create a project online, it sets the local folder to the one of the previous one, which of course would not work because the relative paths of my file are referred to the current one. When I try to change it to the current one I get this error, that I cannot interpret:

Traceback (most recent call last):
  File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.6/gitlab/exceptions.py”, line 251, in wrapped_f
  File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.6/gitlab/mixins.py”, line 204, in create
  File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.6/gitlab/__init__.py”, line 604, in http_post
  File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.6/gitlab/__init__.py”, line 510, in http_request
gitlab.exceptions.GitlabHttpError: 400: {‘name’: [“can’t be blank”, “can contain only letters, digits, emojis, ‘_’, ‘.’, dash, space. It must start with letter, digit, emoji or ‘_’.”], ‘path’: [“can’t be blank”, “can contain only letters, digits, ‘_’, ‘-‘ and ‘.’. Cannot start with ‘-‘, end in ‘.git’ or end in ‘.atom’”, ‘is too short (minimum is 1 character)’], ‘limit_reached’: []}

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.6/psychopy/app/pavlovia_ui/project.py”, line 146, in submitChanges
  File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.6/psychopy/projects/pavlovia.py”, line 329, in createProject
  File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.6/psychopy/projects/pavlovia.py”, line 324, in createProject
  File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.6/gitlab/exceptions.py”, line 253, in wrapped_f
gitlab.exceptions.GitlabCreateError: 400: {‘name’: [“can’t be blank”, “can contain only letters, digits, emojis, ‘_’, ‘.’, dash, space. It must start with letter, digit, emoji or ‘_’.”], ‘path’: [“can’t be blank”, “can contain only letters, digits, ‘_’, ‘-‘ and ‘.’. Cannot start with ‘-‘, end in ‘.git’ or end in ‘.atom’”, ‘is too short (minimum is 1 character)’], ‘limit_reached’: []}

Please help? I have no idea why it doesn’t work. If I set the local folder to the one it forces me to, then the experiment doesn’t run on Pavlovia and gives me a 403 error.
Thank you!

Anyone? I have no idea how to solve this.