Fixed the first one. Not really sure what's up with the second one, as I've never used or looked into the memory debugging API at all, so for now I just monkey-patched it by setting it to 0 if it doesn't exist, so it can be math'ed. However, I'm not sure the memory reporting is accurate at all, especially the garbage collected (the last number) which seems unbelievably high for many addons, so this and the other memory-related value I added a fallback to 0 for probably need further investigation. The load time is the most important thing, though, and that seems correct, so I probably won't spend much (if any) time on the memory stuff.
Edit: Attachment removed. See here for updated files.