Hi Piotr, we’re having an issue with the upload feature, please send us the file via our contact form, zip it if you have any issues with attaching it. Hopefully we’ll have this fixed very soon, sorry about the inconvenience.
Hello
I’m having trouble uploading a stair file to your server
after pasting the attachment (26kb) it won’t load
can I send it differently for example by e-mail to you?