作成中のフォームに画像をアップロードできません

「画像」要素を使ってフォームに画像を挿入したいのですが、jpgやpngといった一般的な形式でも画像が読み込めず、Form Logoという場所をクリックすると404エラーと出てきます。

Hi westrike0520,

Thanks for reaching out to Jotform Support. Our Japanese Support agents are busy helping other Jotform users right now, so I'll try to help you in English using Google Translate, but you can reply in whichever language you feel comfortable using. Or, if you'd rather have support in Japanese, let us know and we can have them do that. But, it might take a while until they're available again.

Now, coming back to your question, I see that you have an Enterprise account, which means that we have a dedicated Enterprise Support Team to help you. We have a guide that explains how to create a ticket for Enterprise Support. Create a ticket there and someone from the Enterprise Support Team will get in touch with you shortly. 

Thanks for your patience and understanding, we appreciate it.