I have no idea at the moment what the overdrinking warning is caused by, that *shouldn't* happen at the start of the script.
As for the countdowns, thats the code which orders buffs from buffbots. It orders the buffs, and then waits for 1 minute periods before checking if the buff has arrived. I think it tries two buffbots, 15 minutes max for each, and then gives up. At this point, its pretty likely that the buffbots I used to use are no longer reliably online, or their prices have changed. Or both.
I actually haven't used this script since the rollout of NS13, but I'll take a look at it today, from what I hear, theres a few fixes that need to happen, and people are still using this script.