Outgoing File Transfer fails

Good day, I am using OpenFire 3.9.3 and Smack version 4.1.0 beta1 to attempt to send a file to another mobile client and to spark client which both results in failure.

Also with incoming files, they get stuck at the negotiating status and never continue.

I debugged the IQ being from the device sending the file and received this

<?xml version="1.0" encoding="UTF-8"?>
<iqtype="error"id="HW607-17"from="user1"to="user2">
   <sixmlns="http://jabber.org/protocol/si"id="jsi_617279424494901674"mime-type="application/pdf"profile="http://jabber.org/protocol/si/profile/file-transfer">
   <filexmlns="http://jabber.org/protocol/si/profile/file-transfer"name="Hgfgcvg_-1226321269.pdf"size="2123243520">
   <desc>Hgfgcvg_-1226321269.pdf</desc>
   </file>
   <featurexmlns="http://jabber.org/protocol/feature-neg">
   <xxmlns="jabber:x:data"type="form">
   <fieldvar="stream-method"type="list-single">
   <option>
   <value>http://jabber.org/protocol/bytestreams</value>
   </option>
   <option>
   <value>http://jabber.org/protocol/ibb</value>
   </option>
   </field>
   </x>
   </feature>
   </si>
   <errorcode="503"type="cancel">
   <service-unavailablexmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/>
   </error>
</iq>

<?xml version="1.0" encoding="UTF-8"?><iq to="user2" id="A8cyJ-15" type="set">   <si xmlns="http://jabber.org/protocol/si" id="jsi_8154035058120457630" mime-type="application/pdf" profile="http://jabber.org/protocol/si/profile/file-transfer">      <file xmlns="http://jabber.org/protocol/si/profile/file-transfer" name="New_Agent_-1140654337.pdf" size="2123243520">         <desc>New_Agent_-1140654337.pdf</desc>      </file>      <feature xmlns="http://jabber.org/protocol/feature-neg">         <x xmlns="jabber:x:data" type="form">            <field var="stream-method" type="list-single">               <option>                  <value>http://jabber.org/protocol/bytestreams</value>               </option>               <option>                  <value>http://jabber.org/protocol/ibb</value>               </option>            </field>         </x>      </feature>   </si></iq>

I am unsure whether this is a client bug or something that was since patched from this version of smack, any tips or suggestions would be greatly welcomed.