solr, php error

I'm getting this after I run a harvest on the demo, can you help me.

Details
Type solr
Date Sunday, October 2, 2011 - 16:15
User admin
Location http://localhost/rcplxc/batch?id=36&op=do
Referrer http://localhost/rcplxc/batch?op=start&id=36
Message xc_solr_false_metadata: array ( )
Severity error
Hostname 1....
Operations 16:15:40.906 xc_solr.module:2603 (xc_solr_onestop_indexer_batch())

Details
Type php
Date Sunday, October 2, 2011 - 16:15
User admin
Location http://localhost/rcplxc/batch?id=36&op=do
Referrer http://localhost/rcplxc/batch?op=start&id=36
Message Division by zero in /var/www/html/rcplxc/sites/all/modules/xc/xc_solr/xc_solr.module on line 2526.
Severity error
Hostname 1....
Operations

Details
Type php
Date Sunday, October 2, 2011 - 16:15
User admin
Location http://localhost/rcplxc/batch?id=36&op=do
Referrer http://localhost/rcplxc/batch?op=start&id=36
Message Division by zero in /var/www/html/rcplxc/sites/all/modules/xc/xc_solr/xc_solr.module on line 2523.
Severity error
Hostname 1......
Operations