[Plugin: WP-Property – WordPress Property and Real Estate Management] A little help

Can anyone offer some help? I am attempting to set up this plug in and get the following error when I attempt to post

Warning: array_merge() [function.array-merge]: Argument #2 is not an array in /home/content/t/r/a/tracyeckert/html/byownerrealty/wp-content/plugins/wp-property/core/class_functions.php on line 419

Warning: Cannot modify header information – headers already sent by (output started at /home/content/t/r/a/tracyeckert/html/byownerrealty/wp-content/plugins/wp-property/core/class_functions.php:419) in /home/content/t/r/a/tracyeckert/html/byownerrealty/wp-includes/pluggable.php on line 890

Thanks, Tracy

https://www.ads-software.com/extend/plugins/wp-property/