Reading an xlsx with a constructor (rule)

Hello ,
I have created a process model, through a rule I go through an xlsx to read its lines.

I save the information in an object of type CDT and then insert each line in the DB.
The process works correctly, with validation, reading and insertion of the lines, but when the size of xlsx lines is 800 or more, it exits the script node without giving an error.

I think it may be the problem because for each line of the xlsx I have to make a query to the DB to validate its existence and it may come out for time, I don't know because it doesn't give an error.

Thx