I deployed my model following the instructions from the ‘Deploying on Google App Engine’ link and made a few modifications based on these changes, thanks to @jinudaniel. I noticed when I upload larger pictures that are in MB’s, compared to KB’s, the image uploads ok, but the analysis freezes and this error is produced after 11 seconds or longer.
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I found a couple of users asking the same question using different production systems but havn’t found any answer yet. This is more of a web development related problem. I’m gonna try adding some code to shrink the image size and see if that works. Any other ideas?