I import 16366 tokens from csv file.
Evenything works fine now, except when I click "display tokens" to see the list page, it is empty, the list is empty.
But I can export this list to csv file.

Why?

PS:
I find /index.php/admin/tokens/getTokens_json/surveyid/941689 returns 500 error.
But I can't find any error log about it.
In this function, it seems all data was loaded: $tokens = Tokens_dynamic::model($iSurveyId)->findAll(array("order"=>$sidx. " ". $sord));

I fix this problem through update three lines:

......
/* $tokens = Tokens_dynamic::model($iSurveyId)->findAll(array("order"=>$sidx. " ". $sord)); */
$tokens = Tokens_dynamic::model($iSurveyId)->findAll(array("order"=>$sidx. " ". $sord, "offset"=>($page - 1) * $limit, "limit"=>$limit));
......
/* $aData->records = count($tokens); */
$aData->records = Tokens_dynamic::model($iSurveyId)->count();
......
/* for ($i = 0, $j = ($page - 1) * $limit; $i < $limit && $j < $aData->records; $i++, $j++) */
for ($i = 0, $j = 0; $i < $limit && $j < $limit; $i++, $j++)
......