MySQL #1140 - Mixing of GROUP columns

Question

Hi wondering if perhaps someone could shed some light on the below error. The sql works fine locally but i get the the below error remotely.

SQL query:

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Answer 1

Just happened the same to me. Just follow this instructions:

1. In laravel, go to config/database.php
2. Search for the 'strict'=>true property and change it to 'strict'=>false.
3. php artisan optimize

Then i hope you fixed it. See you!