Hello @yfourar ,
Can you try to reset/clear cookies of the browser and try to login again?
If it doesn't work then reload the switch and check again.
How are you accessing cli of the switch? Try to access via console and check if 'initialize' command is there?
This will reset to factory default.
<HPE> intialiaze
or Follow the steps as shared by @-Alex-
This device is locked for full cli acccess for users so you can not see all commands.
Below is the user guide link:
https://support.hpe.com/hpesc/public/docDisplay?docId=c04657809
Thanks!