I performed an ISPConfig update just so that I can be prepared for it when the next update arrives. I wanted to test it on my pre-production server, which I can easily roll-back to an earlier snapshot. On executing, I saw the following errors and was wondering if this is an issue I should fix? I accepted all default options, including [stable] branch. The script continued to the end gracefully. I have already performed a roll-back to pre-update state, but I'm trying to prepare for the upcoming release before I put this system into production and would like to fix the underlying cause of those errors before we upgrade it as a hot server. The install is as the Perfect Server guide for Ubuntu 18.04 and my existing ISPConfig is v3.1.15p3. Your thoughts please gents!