The website encountered an unexpected error

@Ujwala_D

I imported a CSV file containing a date. First time, it worked. I was happy. I tried it again with a clean install and stumbled over the message:

The website encountered an unexpected error. Please try again later.

I followed your instructions but it didn't help. I can import files but only the titles show up. No other data is displayed. Going into the database, I see the dates stored. I have a CSV file with a date only—no time. I tried different PHP codes at:

 case 'datetime':
  $dateTime = \DateTime::createFromFormat('Y-m-d h:i:s', $data[$keyIndex[$fieldNames[$f]]]);
  $newDateString = $dateTime->format('Y-m-d\Th:i:s');
  $nodeArray[$fieldNames[$f]] = ["value" => $newDateString];
  break;

• your code:

case 'datetime':
  $dateTimeStamp = strtotime($data[$keyIndex[$fieldNames[$f]]]);
  $newDateString = date('Y-m-d\TH:i:s', $dateTimeStamp);
  $nodeArray[$fieldNames[$f]] = ["value" => $newDateString];
  break;

• and something like:

case 'datetime':
  $nodeArray[$fieldNames[$f]] = ["value" => $data[$keyIndex[$fieldNames[$f]]]];
  break;

• or:

 case 'datetime':
  $dateTime = \DateTime::createFromFormat('Y-m-d', $data[$keyIndex[$fieldNames[$f]]]);
  $newDateString = $dateTime->format('Y-m-d');
  $nodeArray[$fieldNames[$f]] = ["value" => $newDateString];
  break;

It didn't help. The data doesn't show up though it is in the database. I tried different codes with such results in the database:

2012-08-27 (a date like it should be)
1970-01-01 (something went wrong)
2012-08-27T00:00:00 (date and time)

To be clear: I definitely don't want a time, just a date. The problem is that all data doesn't show up except the title.

P.S. The first time, I had several migration modules installed: Migrate Plus, Migrate Source CSV…