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1. jseymour3000
   Member
   Posted 1 month ago #

   When trying to login into blog I have login screen but this is at top:

   Warning: Header may not contain more than a single header, new line detected. in D:\home\hirepromotions.com\wwwroot\blog\wp-login.php on line 299

   Warning: Cannot modify header information - headers already sent by (output started at D:\home\hirepromotions.com\wwwroot\blog\wp-login.php:299) in D:\home\hirepromotions.com\wwwroot\blog\wp-login.php on line 301

   After login i get another string:
   Warning: Header may not contain more than a single header, new line detected. in D:\home\hirepromotions.com\wwwroot\blog\wp-login.php on line 299

   Warning: Cannot modify header information - headers already sent by (output started at D:\home\hirepromotions.com\wwwroot\blog\wp-login.php:299) in D:\home\hirepromotions.com\wwwroot\blog\wp-login.php on line 301

   Warning: Cannot modify header information - headers already sent by (output started at D:\home\hirepromotions.com\wwwroot\blog\wp-login.php:299) in D:\home\hirepromotions.com\wwwroot\blog\wp-includes\pluggable.php on line 662

   Warning: Cannot modify header information - headers already sent by (output started at D:\home\hirepromotions.com\wwwroot\blog\wp-login.php:299) in D:\home\hirepromotions.com\wwwroot\blog\wp-includes\pluggable.php on line 663

   Warning: Cannot modify header information - headers already sent by (output started at D:\home\hirepromotions.com\wwwroot\blog\wp-login.php:299) in D:\home\hirepromotions.com\wwwroot\blog\wp-includes\pluggable.php on line 664

   Warning: Cannot modify header information - headers already sent by (output started at D:\home\hirepromotions.com\wwwroot\blog\wp-login.php:299) in D:\home\hirepromotions.com\wwwroot\blog\wp-includes\pluggable.php on line 666

   Warning: Cannot modify header information - headers already sent by (output started at D:\home\hirepromotions.com\wwwroot\blog\wp-login.php:299) in D:\home\hirepromotions.com\wwwroot\blog\wp-includes\pluggable.php on line 861

2. numeeja
   Member
   Posted 1 month ago #

   It looks like a plugin is probably causing the issue.

   Disable all your plugins. Hopefully you won't get the error then.

   Then re-enable the plugins one-by-one until the issue reappears. This will indicate which plugin isn't behaving.

   If you can't log in, disable the plugins by one of the methods on this page

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