Too Many Hard Drives Removed PLEASE HELP


I have a Drobo 5DT and I’m getting the dreaded “Too Many Hard Drives Removed” error along with 5 solid red lights.
I even add a brand new drive. still solid red but health shows GOOD.

I tried to take off and insert drives after shutdown Drobo but didn’t work.
I read some other posts and looks I have to do * Block Level Clone all the drives in Drobo
but i have no idea have to do that.
can you please help me to solve this problem? im photographer and my all pictures since 2007 saved on my drobo.
thanks in advance