I'm installing for the 1st time Mailwizz, and I'm little bit disapointed!... On DB import stepp, I click on "importing" and then I have a 500 error page! I can't go further. All the files in config are chmod 0777, and the dir too. A file named "main-custom.php" is created, the tables in the database are created. If I go back and try again, I have the message "Unable to write the configuration file!". Then I have to delete all tables, delete the file main-custom.php to start again, but same problem each time : 500 error. So I'm stuck now! Need help please...