tribesnext.com warning and error messages

Started getting captcha equation warning page and seeing this

Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /home/theconstruct/tribesnext.com/public/forum/Sources/Load.php(228) : runtime-created function on line 3

Warning: Cannot modify header information - headers already sent by (output started at /home/theconstruct/tribesnext.com/public/forum/Sources/Load.php(228) : runtime-created function:3) in /home/theconstruct/tribesnext.com/public/forum/Sources/httpBL_Subs.php on line 128

Warning: Cannot modify header information - headers already sent by (output started at /home/theconstruct/tribesnext.com/public/forum/Sources/Load.php(228) : runtime-created function:3) in /home/theconstruct/tribesnext.com/public/forum/warning.php on line 218