Index.php page errors

[innocuous]

Hi,

I turned on display_errors in config and now even the base page

 

http://domain.com/index.php is showing these errors.

 

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Warning: base64_decode() has been disabled for security reasons in /home/lehkimeh/public_html/classes/Rijndael.php on line 36

 

Warning: base64_decode() has been disabled for security reasons in /home/lehkimeh/public_html/classes/Rijndael.php on line 71

 

Warning: Cannot modify header information - headers already sent by (output started at /home/lehkimeh/public_html/classes/Rijndael.php:36) in /home/lehkimeh/public_html/classes/Cookie.php on line 316

 

Warning: Cannot modify header information - headers already sent by (output started at /home/lehkimeh/public_html/classes/Rijndael.php:36) in /home/lehkimeh/public_html/classes/controller/FrontController.php on line 663

 

Warning: Cannot modify header information - headers already sent by (output started at /home/lehkimeh/public_html/classes/Rijndael.php:36) in /home/lehkimeh/public_html/classes/controller/FrontController.php on line 664

 

Warning: Cannot modify header information - headers already sent by (output started at /home/lehkimeh/public_html/classes/Rijndael.php:36) in /home/lehkimeh/public_html/classes/Tools.php on line 131

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Nothing else is displayed on page.

If I turn OFF display errors, then page loads fine.

 

How do I fix this???