powerconnect - Last lane is missing

Hello

On my backup of Dell PowerConnect, the last lane is missing.

show run on system

sntp client poll timer 64
sntp unicast client enable
sntp unicast client poll
sntp anycast client enable
sntp server xx.xx.xx.xx poll
sntp server xx.xx.xx.xx poll

Oxidized:

sntp client poll timer 64
sntp unicast client enable
sntp unicast client poll
sntp anycast client enable
sntp server xx.xx.xx.xx poll

How can I fix that ?