Do not have "add button" in APPS

My Cloud OS 3 Personal & Network Attached Storage My Cloud
9

I found out the solution for the accept button.

I can install Plex Media Server successfully.

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However, it will fail to update when doing it manually. any autoupdate apps?

Is that WDMyCloud_UtilsUpdate_17.bin for this function? do I need to install it?

thanks