If I look at your form, I see 10 fields, which corresponds to 11 colones in the table (10 +1 for timestamp).
If I look in your event script I see ColumnCount integer = 8 (line 16)
There is therefore a mistake I think ...
If I look at line 43 and line 47, I see that you are requesting colone 6 twice for 2 different things.
So there is an error there too I think ...