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?
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.