Venus OS v3.80~32 Error: #46 Data partion full

Approx. 5h after updating from ~27 for ~32 I got the error message “#46 Data Partition full” GX Device.
Downgraded to ~27.

How to clean the data partion of my EkranoGX without destroying SK?
No, I do not intend to start over by factory reset…

Check https://www.victronenergy.com/live/venus-os:large#disk_space_issues_data_partition_full