I've setup a training instance on Odoo  Cloud and now all the CSV imports I'm attempting are returning 500 errors.   It was working up to 24 hours ago.

Summary

URL: https://training-mlc.odoo.com/base_import/set_file

Status: 500 INTERNAL SERVER ERROR

Source: Network

Address: 158.69.52.160:443

Request

POST /base_import/set_file HTTP/1.1

Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryBypaDUg8bhQMtO2W

Origin: https://training-mlc.odoo.com

Host: training-mlc.odoo.com

Accept: text/javascript, application/javascript, application/ecmascript, application/x-ecmascript, */*; q=0.01

Connection: keep-alive

Accept-Language: en-us

Accept-Encoding: br, gzip, deflate

Cookie: session_id=95c41284c371c01fb73cc4e89970c8c2a0ca8d10

User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/11.1.2 Safari/605.1.15

Referer: https://training-mlc.odoo.com/web

Content-Length: 1283

X-Requested-With: XMLHttpRequest

Response

HTTP/1.1 500 INTERNAL SERVER ERROR

Content-Type: text/html

Date: Thu, 16 May 2019 11:19:10 GMT

Connection: keep-alive

Server: nginx/1.14.0

Content-Length: 291

Request Data

MIME Type: multipart/form-data

Boundary: ----WebKitFormBoundaryBypaDUg8bhQMtO2W

Request Data: