Same problem
I am encountering the same problem. However when I appiled your fix I am now getting this error
Fatal error: Cannot redeclare wa_ab_getloopedfieldname() (previously declared in /home/theacts1/public_html/WA_DataAssist/WA_AppBuilder_PHP.php:11) in /home/theacts1/public_html/webassist/database_management/wa_appbuilder_php.php on line 19