I haven't had much sleep (every hour and then stayed awake at five onwards) and not relishing going without another night of sleep as I'm teaching. Grrrr.... A couple of people have offered to SMS, but I'd probably sleep through it if I weren't awake at that time. I'm just desperate to get into the customising class, but looks like it's only on for two sessions

That error message you posted is pretty ominous. A maximum load of 180 database connections is not a very good number, and won't stand up to the load. That's not just a bad programmer, it's a bad client who doesn't understand how much traffic he's going to get. I wish they'd put it up after business hours when the load will be lighter. Like our Timezone, lol