Unconfirmed emails


I have quite a lot of unconfirmed email records.
My list is set to single opt-in. What is causing this?
Should I delete this records or there is a chance for the record to be confirmed later?
Screen shot 2015-05-29 at 8.30.46 AM.png

If the list is single opt-in then they should already be confirmed.
Did you tried subscribing in the list by yourself and see how it went ?

P.S: If you have changed the opt in type, then i assume you can wait for these subscribers to confirm.
Let me know.
Yes, I have tried several times to subscribe myself and it always go through.
The list was started as single opt-in and I have never changed its type.

I just deleted 27 unconfirmed records for the last 48 hours.

I tested further in entering an already in the list email and no name and I got this.

Screen shot 2015-05-30 at 3.13.40 PM.png

It gave me an Unconfirmed record.

Entering only the name gives me the same form and another Unconfirmed record.

So, the problem comes from this obviously.
Before asking for some FTP details, can you look into phpmyadmin and confirm taht your database is using the innodb storage engine ?
If it does, then contact me via PM with the url to the subscribe page, a backend login to mailwizz and a FTP login.
For others to know, the issue is that the storage engine, instead of innodb, turned out to be myisam.
Mailwizz needs innodb because it relies on internal tables relations.