Hi Nep,
I can't access your backend as your backend keeps redirecting me to your frontend. Please advice.

Also can you provide me more details regarding your issue so I can better investigate this?
1. What type of files are you trying to upload? List the file extensions used too.
2. How are you uploading the file/s? Is it on the frontend or backend?
3. Can you specify one post where the issue is occurring?

Sorry, I just figured out that it was all my fault. I added pdf to allowed extensions but instead of a comma I put a period before it. I fixed that and now it works just fine.
The only thing I don't understand is why I didn't get an error telling me that the pdf extension is not allowed.

Thanks again.

Thanks for getting back to us your issue resolved.

We will see if we can improve this in the future version.