Help to fix bloombits chain reorged during section processing

[fgnm]

System information

Geth version: v1.9.0
OS & Version: Linux
Commit hash : ebbf3dfa

Expected behaviour

No errors

Actual behaviour

An error appears running geth:
Section processing failed type=bloombits error="chain reorged during section processing"

What's the problem?

I have a private blockchian, somehow during a transaction happens a fork somewhere that I'm not able to identify, I've discovered that:
Block #8190 -> Block #8191 -> Block #8192 -> Block #8193 -> ... good chain
bad fork .. Block #8190 -> Block #8191 -> null

Now, how can I delete the fork? is this error something danger?
Thank you

[karalabe]

This is supposedly fixed on master.