Hey,
I had the same issue and this is what I determined. If you log into a contest and vote on a photo then log back in using a different user name (but same browser) you’ll receive the same error. I believe it prevents people from creating multiple accounts and voting on their own photo. I found deleting cookies solves this.
I did not get a fix for this but I posted something in my rules page (shown in red) to make it seem like I did it on purpose (http://www.corsetstyles.com/photo-contest)
Good luck.
Plugin Author
frekel
(@frekel)
True…. even with the captcha turned off, I need to get some details into the database (for futher checking along the line).
So what happens is this:
User opens viewimg.php
Cookie is set
Captcha is generated and saved with cookie id into the database
Users votes (form sends captcha, email and vote)
viewimg.php is loaded again
Hidden captcha is checked agains captcha (from database by cookie id)
If the same, the plugin saves the vote
If not the same, captcha error is printed.
What happened with you is, you voted (so the cookie is set). Logged out and tried to vote again. The captcha is still (with you cookie id) in the database. So the captcha will never (hummm 99,999999% chance) be the same.
Note: The cookie is saved for 50 days (Hope to remember WHY is set it to 50 some day 😉
