After updating to PHP7.3 (from version 5.6) I can't acces the administrator.
in the error log I see this message:
PHP Warning: Cannot modify header information - headers already sent by (output started at /home/wwwbo/public_html/plugins/system/securitycheckpro/securitycheckpro.php:1063) in /home/wwwbo//public_html/plugins/system/securitycheckpro/securitycheckpro.php on line 1064
The website self is working good.
Any idea what is wrong after updating to PHP7.3?