My Mautic version is: 2.15.2
My PHP version is: 7.1
My problem is:
how to avoid this to happen again?.
Some new optin used duplicate contact id, resulting the previous optin information got overwrites (email, firstname, mobile) but the previous activity log not. totally messed up the contact info.
tested with my own emails, it works fine. but when actual customer data sometimes it will happen.
These errors are showing in the log: sorry, forgot about this, i deleted all log information.
Steps I have tried to fix the problem: tried using my own emails, it works fine, tried clearing cache, but i do not know how to reproduce the issue.