The file cannot be viewed

Hi, Manager
The latest version cannot browse files.(V9.0.4)

Error
Cannot GET /9.0.4-1c%2054%2086%202a%2061%206a%2085%206f%20a4%200f%20ab%208e%2001%20d9%2052%20a1/web-apps/apps/spreadsheeteditor/main/index.html

Hello @dream,
Please see this:

Can the problem be solved by installing OnlyOffice offline?

This issue occurs specifically on Windows servers and is unrelated to online/offline installations.