Hi I was trying to upload some files on an app that I’m creating for my team and I receiving this error message. When I try to give another request on the same app it throws the same error message and it froze my page completely I have tried anything possible and don’t know what to do right now.
Hi @mgyles ,
welcome to the community 
I know you wrote that you have done everything possible, but did you rename the file and try to upload it? Does a totally different document work, or is it any document?
Best regards,
Nico