Unable to show all problem reports

[chrisjwelly]

According to the Heroku logs:

2019-08-11T10:11:00.577919+00:00 app[web.1]: I, [2019-08-11T10:11:00.577868 #4]  INFO -- : [4730d1e0-9f2b-4177-87c5-7e535fb29067] Completed 500 Internal Server Error in 41ms (ActiveRecord: 6.8ms)

2019-08-11T10:11:00.578611+00:00 app[web.1]: F, [2019-08-11T10:11:00.578544 #4] FATAL -- : [4730d1e0-9f2b-4177-87c5-7e535fb29067]   

2019-08-11T10:11:00.578653+00:00 app[web.1]: F, [2019-08-11T10:11:00.578604 #4] FATAL -- : [4730d1e0-9f2b-4177-87c5-7e535fb29067] ActiveRecord::RecordNotFound (Couldn't find User without an ID):

2019-08-11T10:11:00.578695+00:00 app[web.1]: F, [2019-08-11T10:11:00.578649 #4] FATAL -- : [4730d1e0-9f2b-4177-87c5-7e535fb29067]   

2019-08-11T10:11:00.578751+00:00 app[web.1]: F, [2019-08-11T10:11:00.578700 #4] FATAL -- : [4730d1e0-9f2b-4177-87c5-7e535fb29067] app/views/problem_reports/index.html.erb:55:in `block in _app_views_problem_reports_index_html_erb__719772943260207905_46985992185460'

2019-08-11T10:11:00.578753+00:00 app[web.1]: [4730d1e0-9f2b-4177-87c5-7e535fb29067] app/views/problem_reports/index.html.erb:30:in `_app_views_problem_reports_index_html_erb__719772943260207905_46985992185460'

May have to have a detailed look at the Problem Report database to check what kind of users it is trying to retrieve, as I thought the nil user check in #346 would have solved all these.

Should not be a major problem for non-technical cell members as they are able to report problems normally. Tech cell members fixing some PCs may want to refer to past reports and in that case showing all problem reports would be important.