Steven Zahm@ Wendi
Looking at the files path ../wp-content/plugins/connections-csv/submenu/csv.php, it seems you are using a really old version, you may have to update it.
The error… is actually a just warning for developers and will not affect the function. You should actually disable PHP warnings from being displayed on a live site (as a best practice). Here’s link to a blog post that covers how to do that.
The issue where only part of the whole is being imported… that could be caused by PHP. Newer versions limit the amount of data that can be submitted via a form which is how the old CSV Import worked. New versions work around that limitation. This could also be why none of the addresses and phone numbers and such are importing. is that data actually shown before you import, or is it blank? If it is blank it is not even being read from the CSV file if it is being shown then it could be that the data is being drop due to the new PHP limitations that I’ve mentioned.
You can try increasing the max input. Here’s one link that explains it:
http://stackoverflow.com/a/14166562
I found the above link from this Google search:
https://www.google.com/search?q=php.ini+max+input
Really, the best path forward is to update to the latest. I see that your support license has expired for it so you’ll have to renew it before you’ll have access to the update.
I hope that helps.