Drive is inaccessible

My drive is in the following condition and cannot be used.
A green padlock icon is displayed, no other buttons can be pressed.

If I try to access the drive letter, the following warning message is displayed.

-> Restoring network connection
An error occurred while reconnecting Z: the next time.
\\ kamilake \ Storage1
Microsoft Windows Network: Local device name is already in use.
The connection was not restored.

Can anyone help me?

The following message is also displayed with a certain probability. ->

Z: \ is not available. If it is on this PC, make sure the device or drive is connected or a disc is inserted and try again. If you are on a network, make sure you are connected to the network or the Internet and try again. If you still can’t find the location, it may have been moved or deleted.

Hi~ @Kamilake,

Could you send log files (C:\ProgramData\OpenBoxLab\RaiDrive\log) when this happened?