Thanks Kevin,Bruce, and urayone,
Found a solution to my problem. I created a new NT8 app with just one table. This started a new error free web server app. Then I imported (TXA) from the NT6 app all the procedures except the procedures that were created by the NT8. It worked. No exception error.
But I'm having another issue. On a browse I fave 5 columns. I run the app and it looks fine. Then I remove a column. I still see the header of that column. Is the column layout is getting saved/generated from a cookie or some saved session stuff somewhere? Refreshing does not help.