as I mentioned in https://gitlab.labs.nic.cz/turris/turris-os-packages/issues/216 I dont know how to openwrt init scripts work well enough to fix it easily. I just reverted back to the last version of /etc/init.d/ucollect that worked for me, which was the one without the recent set of changes. that bug is assigned to the developer who made the most recent changes that seem to be triggering the issue. I haven’t heard yet if the developer has reproduced the problem themselves.