Useful plugin

Some days ago I recived a warning from Wordfence as file ” mailchimp-mailmunch-integrate.php”has been modified file. I want to know if si anything alarmed or is an update with “accidental” spelling. I will give 5 stara after I will recive a response. Thank you.
Before modified:
<input type=”submit” name=”action” value=”Choose List” class=”button button-primary” />
After modified:
<input type=”submit” name=”action” value=”Choost List” class=”button button-primary” />
Look at the modified code here: http://snap.ashampoo.com/NyFP8cSf

https://wordpress.org/plugins/mailchimp-forms-by-mailmunch/