Those items in capital letters are definitions. They appear like that when the definition is used but does not exist. As mentioned previously, most versions of this addon included those definitions in the configure files. But later version placed them in a different file or the database.
The easiest thing to do is to search the addon (all of it, not just the php files) for one of those definitions, like OPTIONS_TYPE_TEXTAREA_NAME. You should get more than one result. Check each one to be sure you have made the indicated change.
If you only get one result, then you are probably using a partial update. Some people got lazy when uploading updates to addons and would only upload changed files instead of the complete package. If that is the case, you will need to check the previous releases until you find a complete one.