we have a DELL PowerEdge T420, which always had a iDRAC7 Enterprise license.
After a shutdown due to power failure , the license got lost and fell back to "express". 

 

when I try to import license from Dell Digital Locker account 

I have an error

"The license was not imported.
The error may have occured due to the following reasons:
LIC017-The license file is corrupted, has not been unzipped, or is not a valid icense file"

Would you help me ?

checked that the forum partner license was regenerated and it worked