i'll say 2 way to bypass error ...
first way...
That is because the column is not added to the database.
Run the following query...
Code:
ALTER TABLE forum ADD `MARCO1_forumnocontent` INT( 10 ) UNSIGNED NOT NULL DEFAULT '0';
after that forum will be updateble
second way is firstly disable addon ...
and after that change your forum options...
after that activate your addon again..
and enjoY