ka2

Because the table structure and execution environment is unknown, complete advice I can not. When I read your error message, I noticed loop does not seem to rotate because the argument is not an array.
Depending on the version of PHP, it might deployment of a formula by function is not possible in the argument of the foreach.

So, sorry to trouble, but you might potentially be resolved by renovation as follows: the line 73 of ”cdbt-public-list.php”.

Original source:

foreach (array_shift($total_data) as $key => $val) {
  if ($key == 'COUNT(*)') {
    $total_data = intval($val);
    break;
  }
}

To customized source:

if (is_array($total_data)) {
  $total_data = array_shift($total_data);
  foreach ($total_data as $key => $val) {
    if ($key == 'COUNT(*)') {
      $total_data = intval($val);
      break;
    }
  }
} else {
  $total_data = 0;
}

If your situation to improve, I will reflect the release of bug fix version of the next.

Yes, it is possible.
When you view the data list of a table using shortcode, you can specify a comma-delimited list of field names of the column that you do not want to see.
For example,

[cdbt-view table = "$ {table_name}" exclude_cols = "created, updated"]