Warnings after upgrade from 0.4.3.5 to 0.4.4.4-rc

When I upgraded from 0.4.3.5 to 0.4.4.4-rc, lots of warnings appeared in log file.
This line was repeated 114 times:
Aug 14 15:43:25.000 [warn] The state file seems to be into a status that could yield to weird entry node selection: we're missing both a sampled_idx and a confirmed_idx.
At least, it should appear 1 time. But, maybe, it is not needed at all, since it was just a regular update.