Cannot read property 'id' of undefined

[RN571]

Getting: "Cannot read property 'id' of undefined" a lot, like every couple of chapters, is it just related to traffic or is there something I can do to mitigate it?
I read really fast, and currently mostly read ones I've read before, I've tried to slow down to allow loading, but doesn't seem to help sometimes...

 

[BzzBzz]

That's usual thing at wed/thu when a couple very popular manga get posted and traffic spikes to the heavens. Just wait a bit and it will be fine.

 

[RN571]

Didn't notice the time of week thing, I'll keep that in mind.
Thanks,