I've seen already 2 reports on other forum sections:
https://www.lfs.net/forum/thread/95528-Account-kms-bug
https://www.lfs.net/forum/thread/95527-Travelled-distance-and-Fuel-burnt-dosent-work-%21

Today I checked online stats of a new signup to a league and he has 138 laps driven,27 races finished,but not a single overall distance kilometer:
https://www.lfsworld.net/?win=stats&racer=zahnpastaschaf

So there seems to be a problem and I hope this will now be seen in right forum section...

Aha, thanks for the report!

I had to do a big stats optimization a few weeks ago, because the amount of daily data has grown too large to keep fetching summed data from that table. Distance is one thing I seem to have forgotten to include in the new way of storing totals.
I've fixed that - you should see it go up again. I'll start a separate synchronisation script to fix the counters. But that takes about an hour or two to finish I think.

It should be ok later tonight.

Not sure if it works properly,today one new guy visited server,checked his stats:
https://www.lfsworld.net/?win=stats&racer=Sleier
(travelled distance at time of this post: today 28km,overall 0km)

Quote from Victor :

Rrright, yup. Really fixed now

It looks like pole positions keep reseting to 0.

Good catch. Fixed.