Impossible to add long code About 200 lines

“200 lines” could be any amount of data, from reasonably small to extremely large, but I would guess that you’re running into size limits in the database table. There isn’t a lot I can do about this, as it would be localized to your server. Have a look at if you have limits on the size of your database, and as a solution try to split up your snippets into smaller chunks of code.