When attempting to upload documents for account verification, the error "Invalid Parameters" is returned if the document doesn't fit the parameters and in some cases even if it does.
Make sure that the files you are trying to upload follow these guidelines:
|File size||98 KB||5 MB|
|Image dimensions||350 x 350px||4096 x 4096px|
If you think your file is within these guidelines but you still get the error, contact support and mention "Invalid Parameters" in your message.