I get this error when trying to perform a static analysis on my channel update:
'We are experiencing problems contacting the service. Please try submitting your changes again or refreshing your web browser.'
I've read a similar topic to this here in which someone suggested reuploading the package file and performing the submission again. I tried that but I get the same results.
I started a support ticket but haven't heard back.
I'm not sure if this is relevant, but I noticed that my latest package file is over twice as large as the previous package file I uploaded when I last updated my channel over a year ago. I'm not sure why this is; the update to my channel is minor. I followed the same process I always do.