Changes not saving – thousands of posts and subscribers

Hello,

I have been using emails subscribers since 2016 and it has worked well until recently.
I have made no modifications to the plugin base code or anything else. I did migrate from one website host to another about a year ago.

I have 2 lists and 12 Active Contacts – the dashboard accurately shows this
But page=es_lists&action=manage-lists
shows 40000 contacts and 90000 contacts – which is wrong.

I have 3 post notification campaigns – but 9000 are stored in the database.

Settings will not save – if i change anything and hit save, it changes when i refresh the page. If I change the OLD list a user is subscribed to it gets changed back. But if i create a NEW list – i can add and remove it from a user and it works properly.

THE REASON THIS IS IMPORTANT TO ALL USERS AND NEEDS TO GET FIXED: this issue prevents users from getting unsubscribed from the mailing list – they click the link and the database doesn’t get updated – I was contacted by my ISP because a users that repeatedly unsubscribed got pissed and called my ISP.

I think the problem is database permissions but i don’t want to mess around with stuff i don’t understand. Should i just un-install and re-install the plugin? what about all my subscribed users? Is there a SQL command i can copy and paste to fix the settings.

Thank you for this great tool and your assistance in getting this resolved.