As posted at the issue, the regular production of segment files at k1det1 has stopped between 3/21 UTC and 3/22 UTC. As I checked the log file, the time of stopping the segment production seems to be 2026-03-22 02:15:00 JST ~ 2026-03-22 02:30:00 JST.  After that, the process to generate segment files restarted from 2026-03-22 14:45:00 JST. 
This is coincident with the occurance time of k1nfs0 issue as reported in klog. 

Since the interferometer was down at the time, I don't think many people would be interested in the segment information for this missing period. If that's the case, then ignoring this missing period is also an option.