# Cookie session information lost through update to 3.0.1

**URL:** <https://forum.mautic.org/t/cookie-session-information-lost-through-update-to-3-0-1/15285>\
**Category:** Product Support\
**Created:** [July 20, 2020, 9:09am UTC](https://forum.mautic.org/t/cookie-session-information-lost-through-update-to-3-0-1/15285 "2020-07-20T09:09:25Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![martinus](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/martinus/32/433_2.png) [@martinus](https://forum.mautic.org/u/martinus)\
**Post date:** [July 20, 2020, 9:09am UTC](https://forum.mautic.org/t/cookie-session-information-lost-through-update-to-3-0-1/15285/1 "2020-07-20T09:09:25Z")

</div>

**My software**  
_My PHP version is_ : 7.2.XX  
_My MySQL version is_: 5.7.28

**My problem**  
I just updated to Mautic 3.0.1 from 2.5.3. First, everything seemed to work perfectly fine, new campaigns worked…

… but apparently, Mautic lost track of all old session cookie information = it doesn‘t recognize old/previously existing contacts‘ cookies anymore.

Since I‘m using Mautic also for things like Access Management for certain information hosted on my website, those contacts cannot access it anymore. (I cannot ask them all to reset their browser cookies.)

How can I fix this?

Can I somehow re-import those information? If yes, then how? Which table is this information in? …

Looking forward to a quick response. Time is pressing for me. 😕

Thanks!

– Martin