# Mautic 3.0 Installation Error - Row size too large **URL:** \ **Category:** Mautic 3 - Install/Upgrade Support\ **Created:** [June 16, 2020, 8:02am UTC](https://forum.mautic.org/t/mautic-3-0-installation-error-row-size-too-large/14801 "2020-06-16T08:02:12Z")\ **Posts on this page:** 1\ **Showing post:** 16
**Author:** ![henryweismann](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/henryweismann/32/3125_2.png) [@henryweismann](https://forum.mautic.org/u/henryweismann)\ **Post date:** [August 16, 2020, 11:13am UTC](https://forum.mautic.org/t/mautic-3-0-installation-error-row-size-too-large/14801/16 "2020-08-16T11:13:10Z")
Hi @rehansaleem, We had this issue too but moving to php 7.2 fixed it. Which version of php 7.2.x are you on that you still get the error? See this: > [@Errors with Cron jobs after updating to Mautic 3](https://forum.mautic.org/t/errors-with-cron-jobs-after-updating-to-mautic-3/15016/12): > > I had this too: [16-Aug-2020 10:08:00 UTC] PHP Warning: Class ‘Tightenco\Collect\Support\LazyCollection’ not found in …/vendor/tightenco/collect/src/Collect/Support/alias.php on line 19 [16-Aug-2020 10:08:00 UTC] PHP Parse error: syntax error, unexpected ‘=’ in …/vendor/tightenco/collect/src/Collect/Support/LazyCollection.php on line 611 It was because MAUTIC requires PHP 7.2 and even though I had upgraded an htaccess setting had it at 7.0 still. I also got a memory error after that was … You might want to confirm your PHP version a phpinfo() file in the root if you can’t access the server details in the settings area of Mautic. (Also you may need to disable htaccess to load the phpinfo php file in the root as the htaccess routes all requests to index) Also if it is the right version make don’t assume its the same error causing the 500 error…make sure the error did not change to a memory error. --- _[View the full topic](https://forum.mautic.org/t/mautic-3-0-installation-error-row-size-too-large/14801)._