zilfondel reported the following log error (copied from http://forum.kerbalspaceprogram.com/index.php?/topic/72785-/&page=6#comment-1816129):

Hi, I am receiving this error message periodically while on maximum timewarp, which is ~10,000x and above due to the Time Control mod.

CustomAsteroids: Could not place Ast. TZC-416. Cause: "CustomAsteroids: Selected invalid population kboNonResonant"
Root Cause: "Culture name r is not supported.
Parameter name: name"

These errors typically come in packs of 3 at the same time, but not always. Note that I do not have the tracking station unlocked.

KSP x64 (Linux)

Mods: SETI, Outer Planets Mod, Keptunian Objects, EVE, Better Atmospheres, Time Control, etc.

Possibly related to #16.

Given wtchappell's analysis for #16 and the fact that a web search for "Culture name is not supported" turns up only localisation code, I suspect this bug is some kind of clash between the 0.25 library and the KSP 0.90 code. This issue can be reopened if it reappears in a version built for the appropriate KSP release.