{Help] Oai Error

Hay Guys,

My journal listset (OAI) error looks like this :
https://jurnal.stieww.ac.id/index.php/jurima/oai?verb=ListRecords&metadataPrefix=oai_dc&set=jurima

Please indicate your OJS version.

This is in front of the XML header of the OAI -PMH response:

<br/>
<b>Notice</b>
:  Only variables should be assigned by reference in 
<b>/var/www/html/jurnal/classes/oai/ojs/OAIDAO.inc.php</b>
 on line 
<b>147</b>
<br/>

Use “Show Page Source” in your browser.

Ojs version 3.3.0.13