can't login to wordpress admin - Cannot modify header information

I can't log in my wordpress admin. This is the error that I get when I got to mydomain.com/login

Warning: Use of undefined constant ETHEME_BASE_URL - assumed 'ETHEME_BASE_URL' (this will throw an Error in a future version of PHP) in /home/customer/www/example.com/public_html/wp-content/plugins/et-core-plugin/app/models/customizer/theme-options/global/global.php on line 138

Warning: Cannot modify header information - headers already sent by (output started at /home/customer/www/example.com/public_html/wp-content/plugins/et-core-plugin/app/models/customizer/theme-options/global/global.php:138) in /home/customer/www/example.com/public_html/wp-includes/pluggable.php on line 1416

CodePudding user response：

The et-core-plugin is likely incomaptible with your version of PHP.
Check if there is an update to that plugin.

Alternatively you might get away with changing the error_reporting level.
e.g. by adding ini_set('ERROR_REPORTING',0); in your wp-config.php. Note that this is not a permanent solution but might let you get into your wp-admin short-term.