Connectivity: SIM used: Gaia/device: steps to reproduce: 1. Load https://marketplace-s3dev.allizom.org/app/elegant-pizza?src=search 2. Start the purchase of that app 3. Confirm purchase after entering PIN expected behavior: App installs after successful purchase actual behavior: app install fails with 'Could not generate receipt or record install for Elegant Pizza' since the POST request 500s [req] POSTing "https://marketplace-s3dev.allizom.org/api/v2/receipts/install/?_user=---&dev=desktop&doc_type=all&lang=en-US&limit=24&region=us" include.js:4:15844 This site makes use of a SHA-1 Certificate; it's recommended you use certificates with signature algorithms that use hash functions stronger than SHA-1.[Learn More] btn_spinner_18_2x.png [req] Request failed: POST 500 include.js:4:15844 [req] Response data: {"detail":"Internal Server Error"} include.js:4:15844 Could not generate receipt or record install for Elegant Pizza

This should be fixed.