Custom field template woocommerce aution trigger warning

Once in a while I get warning while using custom field template with some plugins.

At the moment my latest bug is with the woocommerce auctions. (http://ignitewoo.com/woocommerce-extensions-plugins/woocommerce-auctions/)

With this plugin I get the following error in the top of all page :

Warning: Illegal offset type in isset or empty in /home/bastacom/public_html/gallerie/wp-content/plugins/custom-field-template/custom-field-template.php on line 4056

The plugins installed
Custom Field Template
WooCommerce
WooCommerce Auctions

Here is the callstack

Call Stack
# Time Memory Function Location
1 0.0022 865960 {main}( ) ..\edit.php:0
2 0.0032 981808 require_once( ‘C:\wamp\www\auction\wp-admin\admin.php’ ) ..\edit.php:10
3 0.0038 1007728 require_once( ‘C:\wamp\www\auction\wp-load.php’ ) ..\admin.php:30
4 0.0044 1026024 require_once( ‘C:\wamp\www\auction\wp-config.php’ ) ..\wp-load.php:29
5 0.0053 1159560 require_once( ‘C:\wamp\www\auction\wp-settings.php’ ) ..\wp-config.php:99
6 0.1865 28345432 include_once( ‘C:\wamp\www\auction\wp-content\plugins\woocommerce-auctions\woocommerce-auctions.php’ ) ..\wp-settings.php:197
7 0.1878 28418072 IgniteWoo_Auctions->__construct( ) ..\woocommerce-auctions.php:3278
8 0.1969 29139848 do_action( ) ..\woocommerce-auctions.php:282
9 0.2027 29148816 call_user_func_array ( ) ..\plugin.php:406
10 0.2027 29148896 custom_field_template->custom_field_template_delete_post( ) ..\plugin.php:406

http://ww.wp.xz.cn/plugins/custom-field-template/