I cant enable the Plex Service

When i try to enable it , it get stuck like this,


then I refresh the website
image
It doesn’t work.

@esby Have you already tried this?

https://support.wdc.com/knowledgebase/answer.aspx?ID=18937&s=

Your two images are not showing.

Yes, I have already read it.
I tried many times and finnally the service running successfully , but I dont know why.
Thanks anyway!