Synchronizing problems and 403 error

URL of experiment:

Description of the problem: Hi,

I am new to Pavlovia and PsychoPy, and I have managed to set up surveys on Pavlovia, synchronizing them through the project screen. However, when I click on the shortcut synchronization button, I encounter the following error:
Traceback (most recent call last):
File „/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/app/builder/builder.py“, line 1445, in onPavloviaSync
File „/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/app/builder/builder.py“, line 846, in fileExport
File „/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/scripts/psyexpCompile.py“, line 91, in generateScript
File „/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/scripts/psyexpCompile.py“, line 229, in compileScript
File „/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/scripts/psyexpCompile.py“, line 202, in _makeTarget
File „/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/experiment/_experiment.py“, line 356, in writeScript
File „/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/experiment/flow.py“, line 390, in writeFlowSchedulerJS
File „/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/experiment/_experiment.py“, line 1174, in getResourceFiles
File „/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/experiment/_experiment.py“, line 1087, in findPathsInFile
File „/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/data/utils.py“, line 410, in importConditions
File „/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/data/utils.py“, line 304, in _assertValidVarNames
psychopy.exceptions.ConditionsImportError: Bad name: Category
„Parameters (column headers) cannot contain punctuation or spaces“

I know that Pavlovia and PsychoPy are communicating because when I create an experiment in PsychoPy, it appears in my Pavlovia account. However, when I attempt to run the experiment on Pavlovia, I encounter a 403 error and do not know how to proceed.

Any guidance or suggestions on how to resolve this issue would be greatly appreciated.

Thank you in advance for your help!

Do you have a column called Category in your spreadsheet?

Does it have a space after the y (or before the C)?