Strange warning - Failed to cache WorldGen data for server listing

[jmaster]

Hi. I have server on two PC. It consists of 7 shards. 4 shards on one pc (one of them is master), and 3 shards on another. All worked ok for me, when I had just one pc server. But new worlds connected ok with that mistake:

[00:02:12]: WARNING: Failed to cache WorldGen data for server listing.  Data size (6791) exceeded max length (5120).

And now Nobody can see description of the world in lobby (icon is grey) and disabled for players. The can join and play, but can not see info about world before join. Can it be checked?

Thanks