Regarding log: there is a variant of the jl API that allows you to retrieve log data from any specified start date and end date. Details can be found in the API document:
https://openthings.freshdesk.com/support/solutions/articles/5000716363-os-api-documents
About ENC28j60: as I said in this post:
https://opensprinkler.com/forums/topic/controller-lockups-crashes/page/4/#post-67707
I’ve done everything I can to debug and the latest version is 2.1.9(7) available for both OS 3.2 and OS 2.3. If this still doesn’t solve the freezing issue, I don’t know what else to try — there is no means for me to debug since I cannot reproduce the problem.