[Symptom]
When I click the document sharing button, the file open window does not appear or there is no response at all.
[Resolution]
The file opening system may not work normally due to problems in your PC environment.
As a test, if the file browser does not open on the site below, the browser function of your PC is not working properly.
Link: https://www.javascripture.com/FileReader
Please follow the steps below.
1) Reinstall chrome
2) Update your OS and reinstall if needed (PC reinstallation)