prompt : An error has happened during application run. See exception log for details. Could not write error message to log. Please use developer mode to see the message.
There are mainly two reasons for this error.
1. Magento throws this error at the time of uploading the latest version of Magento 2 on the server.
2. Another reason for the error is the installation of Magento 2 latest version to your server.
Solution for this:
Enable Developer mode:
There are two ways to enable developer mode. one through .htaccess and
the other is through SSH/Command line.
Give 'Kudo' and accept it as a solution if it works.
All the best!
As you are getting the error "An error has happened during application run. See exception log for details" I will suggest going through:
I hope it will solve your issue