Okay, then your issue is probably (at least slightly) different from the issue discussed in the GitHub topic. It might be a memory issue – I’ve seen more reports about that lately, though I haven’t been able to point down what causes it. The good news is that I’ve got memory usage down about 20% for the upcoming v1.21 release next week, with another 20% on the way (depending on which integrations you use).
However, it’s impossible to say for certain what’s causing your issues and what will resolve it until we can have a look at your serial logs.