Yes, you may ask you web hosting for your FTP access and you can install Filezilla on your Mac. You can login through FTP then edit the wp-config.php file and find the line:
define( 'WP_DEBUG', false );. Set it to
true then save the file. Once you go back to the site, you should be seeing some error information that will give you an idea what is causing the issue.
If you are getting an error message that suggests:
Fatal error: Allowed memory size of xxxxx bytes exhausted, it means that you need to have the PHP memory limit of your site increased.
To do this, please edit your wp-config.php file and insert these lines:
define( 'WP_MEMORY_LIMIT', '256M' ); define( 'WP_MAX_MEMORY_LIMIT', '512M' );
You can add it before the line
/*That's all, stop editing! Happy Blogging. */
Here is a details article about the PHP Memory Limit that is in our Knowledge Base:
In case the issue persists, please try to get in touch with your hosting provider and confirm to them that your PHP memory limit is increased.
If you are still having an issue, please provide us with the admin and FTP details of your site in a Secure Note so that we can check this further.