Nothing to be concerned about.  When I added back in Crypto Pairs, I check against a variable that doesn't always have all the possible pairs in an array.  In the next build I will update the check so that it makes sure the pair exists, and if it doesn't it'll fail silently (as it should do now) so that nothing gets logged.  Other than making your logs a bit longer than they should be though, this won't effect the bot at all as it is.