Cold Again and Cold Again

So two sets of people came to fix the heater at two different times. Around lunchtime there was a van there (never talked to or saw the person) but then it was working again...for about an hour. Contacted my landlord again and he sent someone. This guy came later in the afternoon. Actually talked to him. They got it working again and he gave me some information on how to restart it again if it stops again (uh, unplug it and plug it back in after ten seconds). Also something about how much a certain light is blinking to send him that information in a text. Anyway, this also stops working after a while. After some time we go back down to the basement to try to restart it and it does power back up and act like it's running after plugging it back in, but heat never materializes inside. It would run for maybe a minute or so and then die down for a second, then start back up and die down. It did this three time, kind of like it was trying to start up but couldn't. Anyway yeah, so still no heat. I'm about to send him the message about what's going on. Also wasted a bunch of last night trying to work on my trailheads (salesforce cert training). So I've finished all the regular units and I'm working on the two superbadges that have an element of a more open-ended task to complete. Well, the instructions are somewhat vague and I'm stuck on one criterion and I'm certain I've got it correct, even checked with an example but it gets me a vague error that's saying "something is wrong with one of the fields you created" and it had me create at least six fields and I don't know which one or what it is and it's that thing where I'm just fucking stuck and it's frustrating as hell. As far as I can see by the somewhat vague requirements it looks correct so I'm not even sure how to move on. And I spent way too many hours on that yesterday.