Since version 7.0, I’ve been unable to add any itemHistory widget to the dashboard. I upgraded to version 7.0.13, but the issue still persists. Apparently, this happens because my items have very large IDs, which causes errors due to PHP parameters being defined as int32.

I was able to work around the problem by editing the PHP file: widgets/itemhistory/actions/ColumnEdit.php, changing the parameter 'itemid' => 'int32' to 'itemid' => 'string'. However, I would like to request that you consider making an official fix for this.