Diagnostics show Red Caution

Have you tried to upgrade to 5.26.300? The image below is from my WDMYCLOUD.

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Firmware Update for OS5 - My Cloud OS 5 Personal & Network Attached Storage / My Cloud - WD Community

My Cloud OS 5 Firmware Release Note 5.26.300 - My Cloud OS 5 Personal & Network Attached Storage / Announcements - WD Community