Client's Workflow Subscriber logs are running large. Currently the total logs are about 40GB, 20GB in just this month. Any ideas what is causing this large number of logs?

The logs I am referring to are located C:\ProgramData\Laserfiche\WF\ServerData\SubscriberLogs\<WFServname>\.

I checked the Workflow Administration console hoping to see some sort of logging being turned on for troubleshooting perhaps but couldn't find any.

Can these logs be deleted and if yes, are there any issues that might arise dues to their deletion?