"Service Unavailable" Woes: It Appears that dasBlog is Spontaneously Restarting

I'm aware that my blog has been troublesome lately (hopefully, your aggregator has borne the pain). I run \<a href="http://www.dasblog.info/"" target="_blank" rel="noopener noreferrer">dasBlog, which I generally like and in which I have an insane investment (oh, look, I started this blog 5 years ago this month). However, sometimes I envy those who use a hosted provider. Right now, my dasBlog logs seem to show that dasBlog is restarting every few minutes. The other exceptional thing is that the log is filled with "Validation of viewstate MAC failed" exceptions that very much appear to be the result of comment/referrer spam attempts. Are these exceptions, perhaps, causing the restarts? I dunno'. Anyway, I'll try to see if there's anything I can do about it...