API errcode 11 XML Parsing Error. unclosed token

So my Quickbase app records are created via an API. I've had no issues and been able to solve all XML errors thus far. This one stumped me.

All tags are closed in the XML. I've checked multiple times. What could be causing this error?

<qdbapi><usertoken>xxxxxxxxxxxx</usertoken><field fid="75">2024</field><field fid="76">9</field><field fid="15">103032696</field><field fid="28">03-16-2024</field><field fid="9">70050</field><field fid="12">162191.45</field><field fid="53">Trace3  LLC</field><field fid="54">588</field><field fid="55">Cisco Global Maintenance Support 3 years BL 1130</field><field fid="256">640400</field><field fid="21">654127</field><field fid="152">SA</field><field fid="188">2024-02-27</field><field fid="6"></field><field fid="158">fake.name2@fakecompany.com</field><field fid="153">L1_OTHER</field><field fid="154">L2_GIS</field><field fid="155">L3_ENTPR_INFRASTRUCTURE</field><field fid="156">L4_CORP_FUNCTIONS</field><field fid="48">fakename@fakecompany.com</field><field fid="49">Fake Name</field><field fid='8' filename=""></field><field fid='60' filename=""></field></qdbapi>

Thanks

Deepa