Hi
Couple of ways to check:
1
remove all fields, then add one at a time when creating new content to find error (if it is a field causing error)
2
Head in to db, compare standard core fields with ones you have created in table referenced above.
You need to learn this... them check to see if field storage is represented in comtemt type table ie
if field storage is some_name in #__some_table then make sure #some_table has column some_name.
Ie field Article ID has storage of id in #__content table.
Anyway
Might be something completely different ;)