PHP Fatal Error on 'php artisan migrate' on remote AWS EB instance: laravel.log: Permission denied

When I SSH into my AWS EB instance to run php artisan migrate, I get the following error message:

Link to bigger size of picture below

I am completely confused. First, I don't get this error on the local server. Second, what does a simple log file have to do with migrations anyway? They are ignored by git by default, so no log files are uploaded.

Sigh... Any ideas on how I can be allowed to run my php artisan migrate?