I\'ve run artisan migrate:reset
.
I\'ve deleted some of my migration files because I didn\'t need these tables anymore.
I
I solved my problem by
composer dump-autoload
php artisan migrate
I'm not sure why that worked but my guess is that I might have modified the class name of these problematic migrations in the past.
I also found that renaming the migration with its initial name (The one throwed with the fatal error) also works for some of them.